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<title>matrix-free methods</title><body bgcolor="FFFFFF">
<h2>matrix-free methods</h2>
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<LI><A HREF="../../../src/snes/examples/tutorials/ex38.c.html"><CONCEPT>ex38.c</CONCEPT></A>
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u`` + u^{2} = f. Different matrices for the Jacobian and the preconditioner.<BR>Demonstrates the use of matrix-free Newton-Krylov methods in conjunction<BR>
with a user-provided preconditioner. Input arguments are:<BR>
-snes_mf : Use matrix-free Newton methods<BR>
-user_precond : Employ a user-defined preconditioner. Used only with<BR>
matrix-free methods in this example.<BR>
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<LI><A HREF="../../../src/snes/examples/tutorials/ex44.c.html"><CONCEPT>ex44.c</CONCEPT></A>
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u`` + u^{2} = f. <BR>Demonstrates the use of matrix-free Newton-Krylov methods in conjunction<BR>
with a user-provided preconditioner. Simplified from ex6.c<BR>
Input arguments are:<BR>
-snes_mf : Use matrix-free Newton methods<BR>
-user_precond : Employ a user-defined preconditioner. Used only with<BR>
matrix-free methods in this example.<BR>
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<LI><A HREF="../../../src/snes/examples/tutorials/ex6.c.html"><CONCEPT>ex6.c</CONCEPT></A>
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u`` + u^{2} = f. Different matrices for the Jacobian and the preconditioner.<BR>Demonstrates the use of matrix-free Newton-Krylov methods in conjunction<BR>
with a user-provided preconditioner. Input arguments are:<BR>
-snes_mf : Use matrix-free Newton methods<BR>
-user_precond : Employ a user-defined preconditioner. Used only with<BR>
matrix-free methods in this example.<BR>
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