Finding the yield of a bond given a price.  You can see a
demonstration here:
http://www.sagenb.org/home/pub/423/

The newton-raphson usage starts after the 3d plot.
Brian

On Apr 4, 1:06 pm, Robert Bradshaw <rober...@math.washington.edu>
wrote:
> On Apr 4, 2009, at 11:24 AM, David Joyner wrote:
>
> > Sort of. Look in the examples/calculus subdirectory.
>
> The algorithm is used all over--e.g. square roots of power series are  
> computed via newton-raphson. I am pretty sure many of the numerical  
> optimization/root finding algorithms use it as well. What are you  
> trying to use it for?
>
>
>
> > On Sat, Apr 4, 2009 at 1:57 PM, Brian <medo...@gmail.com> wrote:
>
> >> Is newton-raphson already in SAGE?
>
> >> Thanks, Brian
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