method

atan2

v2_2_9 - Show latest stable - 0 notes - Class: CMath

1_8_6_287
1_8_7_72
1_8_7_330
1_9_1_378
1_9_2_180
1_9_3_125 (0)
1_9_3_392 (0)
2_1_10 (38)
2_2_9 (0)
2_4_6 (0)
2_5_5 (0)
2_6_3 (0)
What's this?

atan2(y,x) private

returns the arc tangent of y divided by x using the signs of y and x to determine the quadrant

CMath.atan2(1 + 1i, 0) #=> (1.5707963267948966+0.0i)

Show source

# File lib/cmath.rb, line 321
  def atan2(y,x)
    begin
      if y.real? and x.real?
        atan2!(y,x)
      else
        (-1.0).i * log((x + 1.0.i * y) / sqrt(x * x + y * y))
      end
    rescue NoMethodError
      handle_no_method_error
    end
  end

atan2

Related methods