<div class="gmail_quote">On Fri, Sep 16, 2011 at 22:42, Matthew Knepley <span dir="ltr"><<a href="mailto:knepley@gmail.com">knepley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div id=":47">It is of course a fixed point iteration, and your definition of Picard is a classic logical<div>fallacy. This is a valid fixed point iteration, Picard refers to a fixed point iteration,</div><div>therefore all Picard iterations are of this form. In fact, Picard encompasses fixed</div>
<div>point iteration to solve nonlinear equations.</div></div></blockquote></div><br><div>I did not assert that it was the _only_ Picard, merely that it is the Picard used in practice to solve nonlinear differential equations. In naming SNESPICARD, you made a different choice, at least as valid in mathematical purity, but not the fixed point iteration commonly used to solve nonlinear differential equations. I don't understand why you are so enamored with that name.</div>