Returns the exponent of a floating-point number.

    This function is supported on OpenVMS Integrity servers and
    Alpha only.

    Format

      #include  <math.h>

      double scalb  (double x, double n);

      float scalbf  (float x, float n);

      long double scalbl  (long double x, long double n);

  Additional Information (explode) :

• Arguments
• Description
• Return Values