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*  This file is part of the PETSc tutorial made by                 *
*      Pierre Jolivet                                              *
*                                                                  *
*                   PDF (v2025.05)                                 *
*                                                                  *
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> example1.py: index set (IS)
> example2.py: vector (Vec)
> example3.py: matrix (Mat)
> example4.py: MatConvert() and MatZeroRowsIS()
> example5.py: DMDA, MATPYTHON, and KSP
> example6.py & example6_options.rc: DMDA, MATAIJ, KSP, and PC
> example7.py: same as example6.py but in 3D
> ex1_options.rc
> example8.py: MatIncreaseOverlap()
> example9.py: MATNEST and PCFIELDSPLIT