[sympy] Implicit Differentiation

2008-10-06 Thread Alan Bromborsky
Suppose I have two symbols A and B that I wish to declare implicit functions of say the symbols x1, x2, and x3. Then I wish to calculate the derivative of A*B with respect to x1 and x2 and x3. Can I do this and if so how? --~--~-~--~~~---~--~~ You received thi

[sympy] Implicit Differentiation

2008-10-07 Thread Friedrich Hagedorn
On Mon, Oct 06, 2008 at 06:26:11PM -0400, Alan Bromborsky wrote: > Yes almost, but can you suppress the (x1,x2,x3) in the output so that > the output would be > > A*dB/dx1+B*dA/dx1 ? I dont think that dA/dx1 is a good idea for a CAS. This notation means the partial derivative of A(x1, x2, x