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

    The Sine of a Complex Number (F-Floating Value) routine returns
    the sine of a complex number (r,i) as an F-floating value.

    Format

      MTH$CSIN  complex-number

1 - Returns

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

    Complex sine of the complex number. MTH$CSIN returns an F-
    floating complex number.

2 - Argument

 complex-number

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

    A complex number (r,i), where r and i are floating-point numbers.
    The complex-number argument is the address of this complex
    number. For MTH$CSIN, complex-number specifies an F-floating
    complex number.