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

1 - Returns

    OpenVMS usage:complex_number
    type:         F_floating complex
    access:       write only
    mechanism:    by value

    The complex square root of the complex-number argument. MTH$CSQRT
    returns an F-floating number.

2 - Argument

 complex-number

    OpenVMS usage:complex_number
    type:         F_floating complex
    access:       read only
    mechanism:    by reference

    Complex number (r,i). The complex-number argument contains the
    address of this complex number. For MTH$CSQRT, complex-number
    specifies an F-floating number.