Arithmetic Calculations in SenseTalk
You can perform mathematical operations in SenseTalk by using mathematical operators as well as a variety of commands and functions. For detailed information about using operators, see the Expressions page, which describes the basics of using expressions in SenseTalk and links to pages for specific mathematical operators (+, -, *, and other operators) and other useful concepts such as comparisons and logical operators.
SenseTalk's arithmetic commands and functions also provide useful tools for working with numbers. Arithmetic Commands can be used to modify numeric values stored in containers. These commands perform the same arithmetic functions as the +, -, *, and / operators. The difference is that these commands take one of their operands from a container and store the result of the calculation back into that container. Arithmetic Functions operate on numbers. You can use these functions to manipulate numbers in a variety of ways.
In a topic related to arithmetic calculations, Points and Rectangles describes how SenseTalk understands the concepts of geometric points and rectangles. Any list of two numbers, or a text string consisting of two numbers separated by a comma, can be treated as a point. The functions explained on the Points and Rectangles page can be used to extract the various component values of a point or rectangle.
Arithmetic Commands
There are four arithmetic commands:
Use them to modify values stored in containers. These commands perform the same arithmetic functions as the +, -, *, and / operators. The difference is that these commands take one of their operands from a container and store the result of the calculation back into that container.
Add Command
Behavior: Use the add command when you want to add a number to the value in a container, replacing the value in the container by the sum. Lists of values can be added, provided that both the source and destination lists contain the same number of items. Each item from the source list is added to the corresponding item of the destination container. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
add numExpr to {chunk of} container
Example
add amount to dollarsVariable
Example
add 37 to item 2 of line 3 of scores
Example
add speed * time to item 1 of distances
Example
add [10,5] to centerPoint
Related:
Subtract Command
Behavior: Use the subtract command when you want to subtract a number from the value in a container, replacing the value in the container by the result. Lists of values can be subtracted, provided that both the source and destination lists contain the same number of items. Each item from the source list is subtracted from the corresponding item of the destination container. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
subtract numExpr from {chunk of} container
Example
subtract checkAmt from accountBalance
Example
subtract 1 from property CountDown of gameController
Example
subtract rate * pmt from line 4 of amortization
Example
subtract [1,2] from boxDimensions
Related:
Multiply Command
Behavior: Use the multiply command when you want to multiply a value in a container by another number, replacing the value in the container by the product. Lists of values can be multiplied, provided that both the source and destination lists contain the same number of items, or that the source is a single value. Each item in the destination container is multiplied by the corresponding item of the source list, or by the source value. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
multiply {chunk of} container by numExpr
Example
multiply score by weightingFactor
Example
multiply accountBalance by 1 + interestRate
Example
multiply item 3 of line x of table by 2
Related:
Divide Command
Behavior: Use the divide command when you want to divide a value in a container by another number, replacing the value in the container by the quotient. Lists of values can be divided, provided that both the source and destination lists contain the same number of items, or that the source is a single value. Each item in the destination container is divided by the corresponding item of the source list, or by the source value. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
divide {chunk of} container by numExpr
Example
divide score by totalCount
Example
divide item 1 of balances by 12
Related:
Arithmetic Functions
Use these functions to manipulate numbers.
Abs, As a positive number, As a negative number functions
Behavior: Returns the absolute value of its numeric parameter. The absolute value is the magnitude of a number regardless of its sign — it is always positive or zero. As a positive number returns the absolute value. As a negative number returns the negative absolute value.
Syntax:
the abs of numFactor
abs( numExpr )
numFactor as a positive number
numFactor as a negative number
Example
put abs(-11) --> 11
Example
if height is a negative number then put abs(height) into height
Example
put (3 - 16) as a positive number --> 13
Example
put 500 as a negative number --> -500
Annuity function
Behavior: Calculates the present value of an ordinary annuity with payments of one unit, based on the specified interest rate per period and the number of periods.
Syntax:
annuity( interest, periods )
Example
put annuity(1%, 32) --> 27.269589
Related:
ATan Function
Behavior: Returns the trigonometric arctangent of its parameter as an angle expressed in radians.
Syntax:
the atan of numFactor
atan( numExpr )
Example
put atan(19) --> 1.518213
Related:
Average Function
Behavior: Returns the average of its parameters. numList may either be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} average of numList
average( numList )
Example
put average(8, 10, 12) --> 10
Example
if the average of [x,y,z] is greater than z then
put "Z is below average!"
end if
Related:
Compound Function
Behavior: Computes the principal plus accrued interest on an investment of 1 unit, based on the specified interest rate and the number of periods.
Syntax:
compound( interest, periods )
Example
put compound(7,25%, 6) --> 1.521892
Example
put initialInvestment * compound(6.7%, 12) into currentValue
Related:
Cos Function
Behavior: Returns the trigonometric cosine of its parameter, which is an angle expressed in radians.
Syntax:
{the} cos of numFactor
cos( numExpr )
Example
put cos(18) --> 0.660317
Related:
Cube Root Function
Behavior: Computes the cube root of its parameter.
Syntax:
cube root( number )
{the} cube root of number
Example
put cube root (27) --> 3
Example
put the cube root of 8 --> 2
Related:
Exp Function
Behavior: Returns the natural exponential of its parameter (that is, the mathematical constant e raised to the power of the parameter).
Syntax:
{the} exp of numFactor
exp( numExpr )
Example
put exp(2) --> 7.389056
Related:
Exp1 Function
Behavior: Returns one less than the natural exponential of its parameter (that is, the mathematical constant e raised to the power of the parameter, minus 1).
Syntax:
{the} exp1 of numFactor
exp1( numExpr )
Example
put expl(2) --> 6.389056
Related:
Exp2 function
Behavior: Returns 2 raised to the power of its parameter.
Syntax:
{the} exp2 of numFactor
exp2( numExpr )
Example
put exp2(8) --> 256
Related:
Frac Function
Behavior: Returns the fractional part of a number. Use the trunc function to get the whole number part of a value. The trunc and frac functions are defined such that trunc(x) + frac(x) is always equal to x.
Syntax:
{the} frac of numFactor
frac( numExpr )
Example
put frac(81.236) --> .236
Related:
Ln Function
Behavior: Returns the natural logarithm of its parameter.
Syntax:
{the} ln of numFactor
ln( numExpr )
Example
put ln(2) --> 0.693147
Related:
Ln1 Function
Behavior: Returns the natural logarithm of 1 more than its parameter.
Syntax:
{the} ln1 of numFactor
ln1( numExpr )
Example
put ln1(2) --> 1.098612
Related:
Log2 Function
Behavior: Returns the base 2 logarithm of its parameter.
Syntax:
{the} log2 of numFactor
log2( numExpr )
Example
put log2(256) --> 8
Related:
Maximum, Max, HighestValue, LargestValue Functions
Behavior: Returns the highest number from a list. The maximum function may be abbreviated as max. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} [max | maximum | highest value | largest value] of numFactor
[max | maximum | highestValue | largestValue]( numExpr )
Example
put max(4, 6, 5, 7, 3) --> 7
Example
if the maximum of [x,y,z] is z then
put "Z is the greatest!"
end if
Example
put largestValue of [2,23,45,76] --> 76
Example
put the highest value of [3,42,9,13,21] --> 42
Related:
Median Function
Behavior: Returns the median (middle value) of its parameters, or the average of the two middle values. numList may either be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth. If numList contains an odd number of numbers, the median is the middle value of the sorted list of numbers, otherwise it is the average of the two middle values.
Syntax:
{the} median of numList
median( numList )
Example
put median(1, 2, 8, 9, 12) --> 8
Example
put the median of "2,7,8,10" --> 7.5
Related:
Minimum, Min, LowestValue, SmallestValue Functions
Behavior: Returns the lowest number from a list. The minimum function may be abbreviated as min. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} [min | minimum | lowest value | smallest value] of numList
[min | minimum | lowestValue | smallestValue]( numList )
Example
put min(4,6,5,7,3) --> 3
Example
if the min of [x,y,z] is z then put "Z is the smallest!"
Example
put lowestValue of [3,9,13,21,42] --> 3
Example
put smallest value of [9,13,21,56,72] --> 9
Related:
Payment Function
Behavior: Returns the payment amount of a loan, given a loan amount, interest rate, term, and frequency of payments.
Syntax:
{the} {daily | weekly | monthly | quarterly | yearly | annual} payment on {a} {loan of} principal {loan} at {a rate of} rate {interest} for {a term of} term { {with} [ [payments | paid] frequency | frequency payments] }payment( loanProperties )
payment( principal, rate, term {, frequency} )
If loanProperties is given as a property list, it should include:
- Principal or Amount — principal amount of the loan (may be specified with a currency unit)
- Rate — interest rate of the loan (may be specified as percent per year, calendarQuarter, month, week, day — if per period is not specified, annual interest rate is assumed)
- Term — the term length of the loan (may be given as a duration of time or as a number of payments. If a number of payments is used (with no duration units), then frequency parameter is required)
- Frequency — the frequency of loan payments (optional if loan term is given as a duration) — may be one of these terms: monthly, months, calendarMonths, quarterly, calendarQuarters, annual, annually, yearly, years, calendarYears, decades, calendarDecades
If the principal is given in units of a particular currency, then the payment amount returned will have the same units. If term is specified with units of duration and frequency is omitted, then the term's units will be used as the frequency of payments.
Example
put payment(amount:$1000, rate: 6.5% per year, term:60 months) --> $19.566148
put payment($10000,7.5%,60,"months") --> $200.379486
Example
put the monthly payment on a ten thousand dollar loan at 4.5% yearly for 10 years --> $103.638409
put payment on a loan of $50000 at 7 percent interest for 60 months rounded to 2 places --> $990.06
Related:
Random Function
Behavior: Returns a randomly generated integer between 1 and the value of its parameter, or between two values, inclusive.
Syntax:
{the} random of numFactor
random( numExpr {, secondExpr} )
Example
put random(12) -- returns any number from 1 to 12
Example
put random(20,30) -- gets a number from 20 to 30, inclusive
Example
put (random(100) / 100) into randomPercentage
Related:
Reset Random Command
Behavior: Resets the random number generator sequence used by the random function and whenever SenseTalk selects things at random. By setting a specific seedExpr value for the random number generator, you can obtain a repeatable sequence of "random" events. This can be very useful for testing purposes. Use the reset random command without a seed value to get an unpredictable sequence.
Syntax:
reset random {{with | from} {seed} seedExpr}
Example
reset random with seed 27
Example
reset random
Example
reset random 2
repeat 10 times
put 1..10 into NumberRange
put any item of NumberRange into ReplaceitemNumber
log ReplaceitemNumber // Using reset random [#] as shown in line 1 results in the same list every time you run the loop.[#] can be any seed number.
// Commenting out "reset random 2" in line 1 and running the repeat loop multiple times results in a different list every time you run the loop.
end repeat
Related:
Round Function
Behavior: Returns the value of its parameter rounded to the nearest whole number. An optional second parameter may be supplied to specify the number of decimal places to round to. A negative number of places will round to the left of the decimal point.
Syntax:
{the} round of numFactor
round( numExpr {, decimalPlaces} )
Example
put round(6.5) --> 7
Example
put round(6.49) --> 6
Example
put round(6.49 , 1) --> 6.5
Example
put round(2389 , -2) --> 2400
Related:
RoundToNearest function
Behavior: Returns the value of its first parameter rounded to the nearest whole multiple of its second parameter.
Syntax:
roundToNearest( numExpr, nearestMultiple )
numExpr rounded to {the} nearest {multiple of} nearestMultiple
Example
put roundToNearest(643,100) --> 600
Example
put roundToNearest(643,25) --> 650
Example
put 12.16 rounded to the nearest multiple of .25 --> 12.25
Related:
Sin Function
Behavior: Returns the trigonometric sine of its parameter, which is an angle expressed in radians.
Syntax:
{the} sin of numFactor
sin( numExpr )
Example
put sin(18) --> -0.750987
Related:
Square Root , SqRt function
Behavior: Returns the square root of its parameter.
Syntax:
{the} [square root | sqrt] of numFactor sqrt( numExpr )
Example
put sqrt(16) --> 4
Example
put the square root of nine --> 3
Related:
Sum Function
Behavior: Returns the sum of its parameters. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} sum of numList
sum( numList )
Example
put sum("8,1", [10,11], 12) --> 42
Example
if the sum of [x,y,z] is more than 100 then
put "The sum exceeds 100"
end if
Related:
Tan Function
Behavior: Returns the trigonometric tangent of its parameter, which is an angle expressed in radians.
Syntax:
{the} tan of numFactor
tan( numExpr )
Example
put tan(18) --> -1.137314
Related:
Trunc Function
Behavior: Truncates a number, returning the integer part of its parameter, and discarding any fractional part. Use the frac function to get the fractional part of a value. The trunc and frac functions are defined such that trunc(x) + frac(x) is always equal to x.
Syntax:
{the} trunc of numFactor
trunc( numExpr )
Example
put trunc(6.8) --> 6
Example
put trunc(6.49) --> 6
Related:
FracFunction ========
id: stk-aritmetic-calculations title: Arithmetic Calculations in SenseTalk slug: /stk-aritmetic-calculations
You can perform mathematical operations in SenseTalk by using mathematical operators as well as a variety of commands and functions. For detailed information about using operators, see the Expressions page, which describes the basics of using expressions in SenseTalk and links to pages for specific mathematical operators (+, -, *, and other operators) and other useful concepts such as comparisons and logical operators.
SenseTalk's arithmetic commands and functions also provide useful tools for working with numbers. Arithmetic Commands can be used to modify numeric values stored in containers. These commands perform the same arithmetic functions as the +, -, *, and / operators. The difference is that these commands take one of their operands from a container and store the result of the calculation back into that container. Arithmetic Functions operate on numbers. You can use these functions to manipulate numbers in a variety of ways.
In a topic related to arithmetic calculations, Points and Rectangles describes how SenseTalk understands the concepts of geometric points and rectangles. Any list of two numbers, or a text string consisting of two numbers separated by a comma, can be treated as a point. The functions explained on the Points and Rectangles page can be used to extract the various component values of a point or rectangle.
Arithmetic Commands
There are four arithmetic commands:
Use them to modify values stored in containers. These commands perform the same arithmetic functions as the +, -, *, and / operators. The difference is that these commands take one of their operands from a container and store the result of the calculation back into that container.
Add Command
Behavior: Use the add command when you want to add a number to the value in a container, replacing the value in the container by the sum. Lists of values can be added, provided that both the source and destination lists contain the same number of items. Each item from the source list is added to the corresponding item of the destination container. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
add numExpr to {chunk of} container
Example
add amount to dollarsVariable
Example
add 37 to item 2 of line 3 of scores
Example
add speed * time to item 1 of distances
Example
add [10,5] to centerPoint
Related:
Subtract Command
Behavior: Use the subtract command when you want to subtract a number from the value in a container, replacing the value in the container by the result. Lists of values can be subtracted, provided that both the source and destination lists contain the same number of items. Each item from the source list is subtracted from the corresponding item of the destination container. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
subtract numExpr from {chunk of} container
Example
subtract checkAmt from accountBalance
Example
subtract 1 from property CountDown of gameController
Example
subtract rate * pmt from line 4 of amortization
Example
subtract [1,2] from boxDimensions
Related:
Multiply Command
Behavior: Use the multiply command when you want to multiply a value in a container by another number, replacing the value in the container by the product. Lists of values can be multiplied, provided that both the source and destination lists contain the same number of items, or that the source is a single value. Each item in the destination container is multiplied by the corresponding item of the source list, or by the source value. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
multiply {chunk of} container by numExpr
Example
multiply score by weightingFactor
Example
multiply accountBalance by 1 + interestRate
Example
multiply item 3 of line x of table by 2
Related:
Divide Command
Behavior: Use the divide command when you want to divide a value in a container by another number, replacing the value in the container by the quotient. Lists of values can be divided, provided that both the source and destination lists contain the same number of items, or that the source is a single value. Each item in the destination container is divided by the corresponding item of the source list, or by the source value. NumExpr is a source expression. It can be a number, any formula, or another container. Chunk is a chunk expression describing part of a container (lines, words, items, or characters). Container is any container.
Syntax:
divide {chunk of} container by numExpr
Example
divide score by totalCount
Example
divide item 1 of balances by 12
Related:
Arithmetic Functions
Use these functions to manipulate numbers.
Abs, As a positive number, As a negative number functions
Behavior: Returns the absolute value of its numeric parameter. The absolute value is the magnitude of a number regardless of its sign — it is always positive or zero. As a positive number returns the absolute value. As a negative number returns the negative absolute value.
Syntax:
the abs of numFactor
abs( numExpr )
numFactor as a positive number
numFactor as a negative number
Example
put abs(-11) --> 11
Example
if height is a negative number then put abs(height) into height
Example
put (3 - 16) as a positive number --> 13
Example
put 500 as a negative number --> -500
Annuity function
Behavior: Calculates the present value of an ordinary annuity with payments of one unit, based on the specified interest rate per period and the number of periods.
Syntax:
annuity( interest, periods )
Example
put annuity(1%, 32) --> 27.269589
Related:
ATan Function
Behavior: Returns the trigonometric arctangent of its parameter as an angle expressed in radians.
Syntax:
the atan of numFactor
atan( numExpr )
Example
put atan(19) --> 1.518213
Related:
Average Function
Behavior: Returns the average of its parameters. numList may either be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} average of numList
average( numList )
Example
put average(8, 10, 12) --> 10
Example
if the average of [x,y,z] is greater than z then
put "Z is below average!"
end if
Related:
Compound Function
Behavior: Computes the principal plus accrued interest on an investment of 1 unit, based on the specified interest rate and the number of periods.
Syntax:
compound( interest, periods )
Example
put compound(7,25%, 6) --> 1.521892
Example
put initialInvestment * compound(6.7%, 12) into currentValue
Related:
Cos Function
Behavior: Returns the trigonometric cosine of its parameter, which is an angle expressed in radians.
Syntax:
{the} cos of numFactor
cos( numExpr )
Example
put cos(18) --> 0.660317
Related:
Cube Root Function
Behavior: Computes the cube root of its parameter.
Syntax:
cube root( number )
{the} cube root of number
Example
put cube root (27) --> 3
Example
put the cube root of 8 --> 2
Related:
Exp Function
Behavior: Returns the natural exponential of its parameter (that is, the mathematical constant e raised to the power of the parameter).
Syntax:
{the} exp of numFactor
exp( numExpr )
Example
put exp(2) --> 7.389056
Related:
Exp1 Function
Behavior: Returns one less than the natural exponential of its parameter (that is, the mathematical constant e raised to the power of the parameter, minus 1).
Syntax: exp1( numExpr ) {the} exp1 of numFactor
Example
put expl(2) --> 6.389056
Related:
Exp2 function
Behavior: Returns 2 raised to the power of its parameter.
Syntax: exp2( numExpr ) {the} exp2 of numFactor
Example
put exp2(8) --> 256
Related:
Frac Function
Behavior: Returns the fractional part of a number. Use the trunc function to get the whole number part of a value. The trunc and frac functions are defined such that trunc(x) + frac(x) is always equal to x.
Syntax:
{the} frac of numFactor
frac( numExpr )
Example
put frac(81.236) --> .236
Related:
Ln Function
Behavior: Returns the natural logarithm of its parameter.
Syntax:
{the} ln of numFactor
ln( numExpr )
Example
put ln(2) --> 0.693147
Related:
Ln1 Function
Behavior: Returns the natural logarithm of 1 more than its parameter.
Syntax:
{the} ln1 of numFactor
ln1( numExpr )
Example
put ln1(2) --> 1.098612
Related:
Log2 Function
Behavior: Returns the base 2 logarithm of its parameter.
Syntax:
{the} log2 of numFactor
log2( numExpr )
Example
put log2(256) --> 8
Related:
Maximum, Max, HighestValue, LargestValue Functions
Behavior: Returns the highest number from a list. The maximum function may be abbreviated as max. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} [max | maximum | highest value | largest value] of numFactor
[max | maximum | highestValue | largestValue]( numExpr )
Example
put max(4, 6, 5, 7, 3) --> 7
Example
if the maximum of [x,y,z] is z then
put "Z is the greatest!"
end if
Example
put largestValue of [2,23,45,76] --> 76
Example
put the highest value of [3,42,9,13,21] --> 42
Related:
Median Function
Behavior: Returns the median (middle value) of its parameters, or the average of the two middle values. numList may either be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth. If numList contains an odd number of numbers, the median is the middle value of the sorted list of numbers, otherwise it is the average of the two middle values.
Syntax:
{the} median of numList
median( numList )
Example
put median(1, 2, 8, 9, 12) --> 8
Example
put the median of "2,7,8,10" --> 7.5
Related:
Minimum, Min, LowestValue, SmallestValue Functions
Behavior: Returns the lowest number from a list. The minimum function may be abbreviated as min. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} [min | minimum | lowest value | smallest value] of numList
[min | minimum | lowestValue | smallestValue]( numList )
Example
put min(4,6,5,7,3) --> 3
Example
if the min of [x,y,z] is z then put "Z is the smallest!"
Example
put lowestValue of [3,9,13,21,42] --> 3
Example
put smallest value of [9,13,21,56,72] --> 9
Related:
Payment Function
Behavior: Returns the payment amount of a loan, given a loan amount, interest rate, term, and frequency of payments.
Syntax:
{the} {daily | weekly | monthly | quarterly | yearly | annual} payment on {a} {loan of} principal {loan} at {a rate of} rate {interest} for {a term of} term { {with} [ [payments | paid] frequency | frequency payments] }payment( loanProperties )
payment( principal, rate, term {, frequency} )
If loanProperties is given as a property list, it should include:
- Principal or Amount — principal amount of the loan (may be specified with a currency unit)
- Rate — interest rate of the loan (may be specified as percent per year, calendarQuarter, month, week, day — if per period is not specified, annual interest rate is assumed)
- Term — the term length of the loan (may be given as a duration of time or as a number of payments. If a number of payments is used (with no duration units), then frequency parameter is required)
- Frequency — the frequency of loan payments (optional if loan term is given as a duration) — may be one of these terms: monthly, months, calendarMonths, quarterly, calendarQuarters, annual, annually, yearly, years, calendarYears, decades, calendarDecades
If the principal is given in units of a particular currency, then the payment amount returned will have the same units. If term is specified with units of duration and frequency is omitted, then the term's units will be used as the frequency of payments.
Example
put payment(amount:$1000, rate: 6.5% per year, term:60 months) --> $19.566148
put payment($10000,7.5%,60,"months") --> $200.379486
Example
put the monthly payment on a ten thousand dollar loan at 4.5% yearly for 10 years --> $103.638409
put payment on a loan of $50000 at 7 percent interest for 60 months rounded to 2 places --> $990.06
Related:
Random Function
Behavior: Returns a randomly generated integer between 1 and the value of its parameter, or between two values, inclusive.
Syntax:
{the} random of numFactor
random( numExpr {, secondExpr} )
Example
put random(12) -- returns any number from 1 to 12
Example
put random(20,30) -- gets a number from 20 to 30, inclusive
Example
put (random(100) / 100) into randomPercentage
Related:
Reset Random Command
Behavior: Resets the random number generator sequence used by the random function and whenever SenseTalk selects things at random. By setting a specific seedExpr value for the random number generator, you can obtain a repeatable sequence of "random" events. This can be very useful for testing purposes. Use the reset random command without a seed value to get an unpredictable sequence.
Syntax:
reset random {{with | from} {seed} seedExpr}
Example
reset random with seed 27
Example
reset random
Example
reset random 2
repeat 10 times
put 1..10 into NumberRange
put any item of NumberRange into ReplaceitemNumber
log ReplaceitemNumber // Using reset random [#] as shown in line 1 results in the same list every time you run the loop.[#] can be any seed number.
// Commenting out "reset random 2" in line 1 and running the repeat loop multiple times results in a different list every time you run the loop.
end repeat
Related:
Round Function
Behavior: Returns the value of its parameter rounded to the nearest whole number. An optional second parameter may be supplied to specify the number of decimal places to round to. A negative number of places will round to the left of the decimal point.
Syntax:
{the} round of numFactor
round( numExpr {, decimalPlaces} )
Example
put round(6.5) --> 7
Example
put round(6.49) --> 6
Example
put round(6.49 , 1) --> 6.5
Example
put round(2389 , -2) --> 2400
Related:
RoundToNearest function
Behavior: Returns the value of its first parameter rounded to the nearest whole multiple of its second parameter.
Syntax:
roundToNearest( numExpr, nearestMultiple )
numExpr rounded to {the} nearest {multiple of} nearestMultiple
Example
put roundToNearest(643,100) --> 600
Example
put roundToNearest(643,25) --> 650
Example
put 12.16 rounded to the nearest multiple of .25 --> 12.25
Related:
Sin Function
Behavior: Returns the trigonometric sine of its parameter, which is an angle expressed in radians.
Syntax:
{the} sin of numFactor
sin( numExpr )
Example
put sin(18) --> -0.750987
Related:
Square Root , SqRt function
Behavior: Returns the square root of its parameter.
Syntax:
{the} [square root | sqrt] of numFactor sqrt( numExpr )
Example
put sqrt(16) --> 4
Example
put the square root of nine --> 3
Related:
Sum Function
Behavior: Returns the sum of its parameters. numList may be a list of numbers, an expression which evaluates to a list of numbers separated by commas, or a combination of these, nested to any depth.
Syntax:
{the} sum of numList
sum( numList )
Example
put sum("8,1", [10,11], 12) --> 42
Example
if the sum of [x,y,z] is more than 100 then
put "The sum exceeds 100"
end if
Related:
Tan Function
Behavior: Returns the trigonometric tangent of its parameter, which is an angle expressed in radians.
Syntax:
{the} tan of numFactor
tan( numExpr )
Example
put tan(18) --> -1.137314
Related:
Trunc Function
Behavior: Truncates a number, returning the integer part of its parameter, and discarding any fractional part. Use the frac function to get the fractional part of a value. The trunc and frac functions are defined such that trunc(x) + frac(x) is always equal to x.
Syntax:
{the} trunc of numFactor
trunc( numExpr )
Example
put trunc(6.8) --> 6
Example
put trunc(6.49) --> 6
Related:
23.3.1:docs/stk-aritmetic-calculations.md