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jjjjvb1-Visitor
1-Visitor
January 16, 2013
Solved

I can`t plot of ellipse in Mathcad 15

  • January 16, 2013
  • 5 replies
  • 4573 views

I get only half of графика in Cartesian coordinates because of a root, depending on a sign expression. I could not do anything at all polar coordinates.

Best answer by Fred_Kohlhepp

You plot it parametrically

5 replies

MichaelH1-Visitor
1-Visitor
January 16, 2013

Your formula for r(phi) is incorrect and does not produce an ellipse in polar coordinates.

You also reversed r and phi in your polar graph.

You can produce the ellipse by adding -f(x) to your xy graph.

I strongly suggest that you read the Help file on using graphs in general.

jkowalski1-Visitor
1-Visitor
January 16, 2013

see example.

jjjjvb1-VisitorAuthor
1-Visitor
January 16, 2013

Thank you. I`d like to know whether it`s possible to plot continuous graphic for Cartesian coordinates i.e. without adding -f(x) ?

Fred_Kohlhepp23-Emerald IAnswer
23-Emerald I
January 16, 2013

You plot it parametrically

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