I have a problem with FindRoot function.
1) At the beginning program solves system of linear equations from which creates a matrix "Gr".
2) Program substitutes the matrix elements.
3) Program counts a matrix "Glesser" on the basis of the matrixes "Gr", "Gammaf", "Gammas", "Ga".
4) Program tries to calculate FindRoot where the integrand expressions are elements of the matrix "Glesser".
And there I get errors:
Everything is in the notebook.
P.S. If U=0 everything is working, but integrand are more simpler.
Thx for your time.
Attachment: FindRootProblem.nb, URL: ,