3D Response Surface

[rgordon]

I have a series of lookup tables that I would like to convert into a 3D response surface so that I can determine output values at intermediate input values rather than just assume linear interpolation. Can anyone help point me in the right direction?

[RogerYeh]

Take a look at the function MULTIDFIT:

http://www.ptc.com/cs/help/mathcad_hc/prime2_hc/index.jspx?id=resourceid-121-077C493E&action=show

[VladimirN]

Hi Roger,

"Mathcad Prime 2.0 Help Center" now is available on the Internet?

http://www.ptc.com/cs/help/mathcad_hc/prime2_hc/index.jspx

[RogerYeh]

Yes, sir! And if it helps any, I noticed that the pages load faster in IE.

[VladimirN]

Thanks!

[VladimirN]

Hi Roger,

Are there any plans for Prime 3.0 release (available online "Mathcad Prime 3.0 Help Center")?

[RogerYeh]

Yes! Our documentation will be working on it next week.

[VladimirN]

Thank you, Roger.

[RogerYeh]

It's now up!

http://www.ptc.com/cs/help/mathcad_hc/prime3_hc/

[VladimirN]

Great!

[RogerYeh]

Also take a look at:

http://communities.ptc.com/thread/35886

[RichardJ]

If linear interpolation isn't good enough you could try spline interpolation instead.

[tdevaraj]

This example is straight out of the help in Data analysis handbook

Hope this helps.

Thomas

[ValeryOchkov]

Robin Gordon wrote:

I have a series of lookup tables that I would like to convert into a 3D response surface so that I can determine output values at intermediate input values rather than just assume linear interpolation. Can anyone help point me in the right direction?

See please here one real and typical example http://communities.ptc.com/docs/DOC-4335