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

    The Cosine of a Complex Number (F-Floating Value) routine returns
    the cosine of a complex number as an F-floating value.

    Format

      MTH$CCOS  complex-number

1 - Returns

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

    The complex cosine of the complex input number. MTH$CCOS 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$CCOS, complex-number specifies an F-floating
    complex number.