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Re: FindRoots?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112094] Re: FindRoots?
  • From: Mark Adler <madler at alumni.caltech.edu>
  • Date: Mon, 30 Aug 2010 06:19:38 -0400 (EDT)
  • References: <i5d01u$bsv$1@smc.vnet.net>

On 2010-08-28 23:51:42 -0700, Sam Takoy said:
> Is there a command for numerically finding all roots of a function in a
> given interval. If not, what's the best way of accomplishing this task?

NSolve and NRoots does that, but only for polynomials.  I think you'd 
have to roll your own to search for the roots in an interval of any 
function.  If you consider functions like Sin[1/x] from 0 to 0.1, you 
can see that it might be quite difficult to do in general.

Mark


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