Weird Extra Pixel Created When Drawing A Circle.

How would I go about removing this?



Code:

function circle(cx,cy,radius,precision)
  precision = precision or 1
  for i=0,359,precision do
    local x = cx + radius*math.cos(i)
    local y = cy + radius*math.sin(i) / 1.5
    pixel(x,y)
  end
end

Thank you in advance. :)/>

I'm not overly positive if you can doing it that way, it may just be an anomaly due to the pixels. Someone will correct me if I'm wrong though.

There is one major improvement that you could make to it, and that's draw 4 points at once.

Spoiler

function circle(cx,cy,radius,precision)
  precision = precision or 1
  for i = 0, 89, precision do
    local x = cx + radius*math.cos(i)
    local y = cy + radius*math.sin(i) / 1.5
    pixel(x,y)
    pixel(-x,y)
    pixel(-x,-y)
    pixel(x,-y)
  end
end

I do know that drawing a circle without anomalies is possible though, a while back I made a function to do it with radians.