VMS Help RTL Routines, MTH$, MTH$CSQRT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Complex Square Root (F-Floating Value) routine returns the
    complex square root of a complex number (r,i).

    Format

      MTH$CSQRT  complex-number

  Additional Information (explode) :

• Returns
• Argument