This probably has a really simple answer.(adsbygoogle = window.adsbygoogle || []).push({});

Forr u=x^2-y^2 and v=x^2+y^2

x and y are apparently the dependent variables. But the independent variable is the input while the dependent variable is the output, so since u=f1(x,y) and v=f2(x,y) shouldn't they (u and v) be the dependent variables?

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# Independent / Dependent variables for implicit functions

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