3/21/2024 0 Comments Ida free download ubuntuWhen using any of the Krylov methods as the linear solver, the iteration is an Inexact Newton iteration, using the current Jacobian (through matrix-free products), in which the linear residual is nonzero but controlled. In the cases of a direct linear solver (dense, banded, or sparse), the nonlinear iteration is a Modified Newton iteration, in that the Jacobian is fixed (and usually out of date). The solution of the resulting nonlinear system is accomplished with some form of Newton iteration. The integration method in IDA is variable-order, variable-coefficient BDF in fixed-leading-coefficient form. It is written in C, but derived from the package DASPK which is written in Fortran. IDA is a package for the solution of differential-algebraic equation (DAE) systems in the form F(t,y,y')=0.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |