C Tutorial/math.h/scalbn

scalbn

Item Value Header file math.h Declaration float scalbnf(float val, int exp);double scalbn(double val, int exp);long double scalbnl(long double val, int exp); Return returns val * FLT_RADIX^exp

The macro FLT_RADIX is defined in <float.h>, and its value is the radix of exponent representation.

<source lang="cpp">#include <math.h>

 #include <stdio.h>
 int main(void)
 {
   printf("%f\n", scalbn (11,2));
   return 0;
 }</source>