strange behavior or bug on ode2



I tested the (not (mminusp* (neg y))) hack.  We don't
get any errors with the test suite.  We could replace
the hack with a new functions apply-odd-function-simp
and apply-even-function-simp. 


(%i1)                           RUN_TESTSUITE()

Running tests in rtest1.mac: 28/28 tests passed.
Running tests in rtest1a.mac: 23/23 tests passed.
Running tests in rtest2.mac: 47/47 tests passed.

<...junk deleted...>

Running tests in rtest8.mac: 50/50 tests passed.
Running tests in rtest12.mac: 74/74 tests passed.
Running tests in rexamples.mac: 136/136 tests passed.

No unexpected errors found.

Barton




Raymond Toy <raymond.toy@ericsson.com>
Sent by: maxima-admin@math.utexas.edu
11/10/2004 11:40 AM

 
        To:     Barton Willis <willisb@unk.edu>
        cc:     <maxima@math.utexas.edu>, Moses Glasner <glasner@math.psu.edu>
        Subject:        Re: [Maxima] strange behavior or bug on ode2


I think your hack of (not (mminusp* (neg y))) is a decent workaround
until the sign bug is fixed.

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