petsc-3.8.4 2018-03-24
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PetscGLLElementGradientCreate

 computes the gradient for a single 1d GLL element

Synopsis

PetscErrorCode PetscGLLElementGradientCreate(PetscGLL *gll,PetscReal ***AA, PetscReal ***AAT)
Not Collective

Input Parameter

gll -the nodes

Output Parameter

AA -the stiffness element
AAT -the transpose of AA (pass in NULL if you do not need this array)

Notes: Destroy this with PetscGLLElementGradientDestroy()

You can access entries in these arrays with AA[i][j] but in memory it is stored in contiguous memory, row oriented

See Also

PetscGLL, PetscGLLDestroy(), PetscGLLView(), PetscGLLElementLaplacianDestroy()

Level:beginner
Location:src/sys/classes/gll/petscgll.c
Index of all Sys routines
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Index of all manual pages