Method: CCMath.acos

Defined in:
ext/ccmath/ccmath.c

.acos(z) ⇒ Object 



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# File 'ext/ccmath/ccmath.c', line 300

static VALUE
ccmath_acos(VALUE obj, VALUE z)
{
    EXTRACT_DBLS(z);

    if (z_imag == 0.0) return DBLS2COMP(acos(z_real), 0.0);

    return f_sub(DBL2NUM(M_PI / 2.0), ccmath_asin(obj, z));
}