standard.C.math.ldexp

Concept Framework 1.0 documentation

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