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standard.C.math.ldexp

Name Version Deprecated
ldexp version 1.0 no

Prototype:
number ldexp(number x, number exp)

Parameters:
x      [in] Any number
exp      [in] Integer exponent

Description:
Computes a real number from the mantissa and exponent. Returns the value of x * 2^exp if successful.
On overflow (depending on the sign of x), ldexp returns +/- indefinite.

Example:
import standard.C.math


class Main {
function Main() {
var x = 4;
var y;
var p = 3;

y = ldexp(x, p);
echo "" + x + " times two to the power of " + p + " is " + y;
}
}


Results
4 times two to the power of 3 is 32

Returns:
Returns the value of x * 2^exp if successful. On overflow (depending on the sign of x), ldexp returns +/- indefinite.

Documented by Simona Gabriela Plesuvu, generation time: Thu Oct 15 20:02:03 2009 GMT(c)2009 RadGs Software