Modern Math Pow

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Pow

Returns one floating-point number raised to the power of another.

Syntax

Pow( x, y )

Notes

• The floating-point power under a name, for code that wants to say so. It is not a replacement for ^, and whole-number powers belong to IPow, which is exact.
• A negative base with a fractional power is NaN.
• Overloaded on float64 and on float32: a single-precision argument takes the single-precision path and does not widen.
• BOUNDED accuracy: correct to the platform library's stated ulp bound.

Examples

#import "std/numeric"
using numeric

print Pow( 2.0, 10.0 )       '' 1024
print Pow( 2.0, 0.5 )        '' 1.414213562373095
print Pow( -8.0, 1.0 / 3.0 ) '' -1.#IND -- use Cbrt for a cube root

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Library: Math Library
Category: Math Library
Documented under: The libm surface