[petsc-dev] The question about MatNullSpaceSetFunction()
Lulu Liu
lulu.liu at kaust.edu.sa
Wed Apr 1 04:39:15 CDT 2015
I feel confused about MatNullSpaceSetFunction(), and is there any example
to show how to use this function? What should I do in the the following
function* rem?*
For example, I have a vection a=(a1,a2,a3) and the null space is (0,0,1).
PetscErrorCode MatNullSpaceSetFunction(MatNullSpace sp, PetscErrorCode
(*rem)(MatNullSpace,Vec,void*),void *ctx)
Input Parameters*sp*- the null space object*rem*- the function that removes
the null space
*ctx*- context for the remove function
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