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Re: About ContourPlot


On Dec 16, 2:44 pm, water <waterloo2... at gmail.com> wrote:
> grapheq =
>  ContourPlot[
>   l + x + 2 x^2 + 2 y - 2 x y + y^2, {x, -6, 1}, {y, -6, 1},
>   Contours -> {0},
>   ContourShading -> False, PlotPoints -> 50, Frame -> False,
>   Axes -> Automatic, AxesOrigin -> {0, 0}]

The problem here is that the first element in the function is l (the
letter not number 1). If that was the letter you will have to give it
a value, otherwise just retype it as number 1.

[This is the first post with the same comments as others, do I
 am posting it - Moderator]


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