C ldexp() Function

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C ldexp() Function

The ldexp() function returns x multiplied by 2 raised to the power of exponent.

This function is defined in <math.h> header file.


C Compiler
#include <stdio.h> #include <math.h> int main() { double x = 4, ret; int e = 3; ret = ldexp(x, e); printf("%f * 2^%d = %f\n", x, e, ret); return 0; }


4.000000 * 2^3 = 32.000000


double ldexp(double x, int e)

Parameter Values

xRequiredSpecifies the significand.
eRequiredSpecifies the exponent.

Return Value

NumberReturns x multiplied by 2 raised to the power of exponent.


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