Hi there, SymPy currently has Integral.transform <http://docs.sympy.org/latest/modules/integrals/integrals.html#sympy.integrals.Integral.transform> to change the variable for one-dimensional integrals.
This could be generalized to multivariate integrals by calculating the Jacobian matrix of the transformation and getting its determinant to determine the change of integration measure. The main problem is about the integration region. Specifically two cases: 1. case where the integration limits do not contain other integration variables. 2. case where the do The second case is way more complicated than the first. My question is whether there is a general algorithm to determine the shape of the integration region for multivariate integrals after a generic (diffeomorphic) coordinate transformation? -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/ef13e88b-ea23-4e01-8383-15c05ce5a310%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
