A Modest Query

[Peter Lissaman]

Does anyone know why Excel SOLVER gives unrepeatable (unspeakable) results
for a simple variation problem? A high order wave equation.  I'll give
details if you e-mail me.

Peter Lissaman,  Da Vinci Ventures

Expertise is not knowing everything, but knowing what to look for.

1454 Miracerros Loop South, Santa Fe, New Mexico 87505
TEL: [phone]                        FAX: [phone]




============================================================
FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org

[Robert Holmes]

Hi Peter

I'm afraid Excel has a long and grubby history of not getting math quite right (just google "excel math errors" and see how far they go back). For your hard-croe analytics it might be worth while taking a look at some open source options such as Sage (http://www.sagemath.org/) or R (http://www.r-project.org/). If you need any assistance with either of these, there's quite a few Santa Fe/FRIAM members who are proficient with one or the other.

Best regards,

Robert

On Wed, Nov 12, 2008 at 12:43 PM, Peter Lissaman <[hidden email]> wrote:

Does anyone know why Excel SOLVER gives unrepeatable (unspeakable) results
for a simple variation problem? A high order wave equation.  I'll give
details if you e-mail me.

Peter Lissaman,  Da Vinci Ventures

Expertise is not knowing everything, but knowing what to look for.

1454 Miracerros Loop South, Santa Fe, New Mexico 87505
TEL: [phone]                        FAX: [phone]




============================================================
FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org

============================================================
FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org