NAME
    SPAcos - obtain the arccosine of the floating point number

SYNOPSIS
    fnum2 = SPAcos(fnum1);
                   d0.l
    float fnum2;
    float fnum1;

FUNCTION
    Accepts a floating point number representing the cosine
    of an angle and returns the value of said angle in
    radians

INPUTS
    fnum1 - Motorola fast floating point number

RESULT
    fnum2 - Motorola fast floating point number

BUGS
    None

SEE ALSO
    spsin