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How to make a equilateral triangular piece in a rectangular meshgrid?

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Mark
Mark 2015-12-27
回答： Mike Garrity 2016-1-4
How can I make a triangular meshgrid from rectangular meshgrid? I want to plot some equations that are obtained in a equilateral triangular shape (Like plotting in a rectangular shape using 'meshgrid').

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Mike Garrity
Mike Garrity 2016-1-4
Meshgrid is going to create a rectangular mesh, but you can fill the parts you don't want with nan, as I described in this post .

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