ToFloatPower (Float function)

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Raise number to a floating point power (Float class)

The ToFloatPower intrinsic function returns a number that is the method object value "raised to the float power" specified by the method argument.


%number = float:ToFloatPower( exponent)

Syntax terms

%number A numeric variable to contain the method result.
float A Float value.
exponent A Float value.

Usage notes

  • If float is equal to 0, and exponent is less than or equal to 0, the request is cancelled.
  • If float is less than 0, and exponent is not 0, the request is cancelled. This is so because, unlike ToIntegerPower, the computation algorithm involves the log of float.
  • ToFloatPower uses good-fit techniques that sometimes produce slightly different results from ToIntegerPower with the same inputs.
  • ToFloatPower is an object-oriented version of the $RXPR function.
  • ToFloatPower is available as of Sirius Mods Version 7.3.


For example:

begin printText {~} = {3:toFloatPower(6)} printText {~} = {3:toIntegerPower(6)} printText {~} = {10:toFloatPower(7)} printText {~} = {10:toIntegerPower(7)} end


3:toFloatPower(6) = 728.999999999999 3:toIntegerPower(6) = 729 10:toFloatPower(7) = 9999999.99999997 10:toIntegerPower(7) = 10000000

Consequently, you should generally use ToIntegerPower unless you really are working with non-integer powers.

See also