I have been working on a math problem and I keep getting the some type of PDEs.(adsbygoogle = window.adsbygoogle || []).push({});

x*dU/dx+y*dU/dy = 0

x*dU/dx+y*dU/dy+z*dU/dz = 0 ...

x1*dU/dx1+x2*dU/dx2+x3*dU/dx3 + ... + xn*dU/dxn= 0

dU/dxi is the partial derivative with respect to the ith variable. Does anyone know about this type of PDE? It looks like the Euler-Cauchy ODE.

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# What is this differential equation? I'm going crazy

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