method

arg

Ruby latest stable (v2_5_5) - 0 notes - Class: Complex

arg() public

Returns the angle part of its polar form.

Complex.polar(3, Math::PI/2).arg  #=> 1.5707963267948966

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static VALUE
nucomp_arg(VALUE self)
{
    get_dat1(self);
    return rb_math_atan2(dat->imag, dat->real);
}