I just noticed that Grapher fails to evaluate a function at a constant. In the image, the graph of y = c should of course be a horizontal line. Is there a way to fix or work around it? This seems like such a fundamental bug that I can't understand why I haven't run into it before.

Grapher screen shot

  • you might want to try math.stackexchange.com
    – Ruskes
    Dec 4, 2014 at 18:50
  • @Buscar웃: it's not a math question, it's a software question, so I bet they'd tell me to ask here.
    – JWWalker
    Dec 5, 2014 at 17:54
  • Well, just assuming there are more ppl in the Math site using the Grapher then here :)
    – Ruskes
    Dec 5, 2014 at 18:34

1 Answer 1


Well, the problem is that Grapher assuming that the x in f(x)=x^2 means the x coordinate.

To fix this problem, you should change the x to some other variable (say z).

I know, Grapher is weird sometimes.

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