I'm new to this web,but I know this is a wonderful forum for reserchers where you can discuss scientific problems with others.(some professors are experts in their fields). I'm now studying anisotropic yield criteria,so I need a graph software which can plot implicit funtions (such as ellipse in the form of x^2-x*y+y^2=1) as well as experimental data.
I know Graph can plot implicit funtions,but the quality of its graph is not good enough.Anyone knows other softwares please give me some advice,thanks in advance.
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