/sys$common/syshlp/helplib.hlb RTL Routines, MTH$, MTH$xLOG2  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Base 2 Logarithm routine returns the base 2 logarithm of the
    input value specified by floating-point-input-value.

    Format

      MTH$ALOG2  floating-point-input-value

      MTH$DLOG2  floating-point-input-value

      MTH$GLOG2  floating-point-input-value

      Each of the above formats accepts one of the floating-point
      types as input.

  Additional Information (explode) :

• Returns
• Argument