Returns the angle part of its polar form.
Complex.polar(3, Math::PI/2).arg #=> 1.5707963267948966
Overloads:
Returns:
1063 1064 1065 1066 1067 1068
# File 'complex.c', line 1063 static VALUE nucomp_arg(VALUE self) { get_dat1(self); return m_atan2_bang(dat->imag, dat->real); }