Skip to main content
K
KaiRussell1-Visitor
1-Visitor
September 1, 2010
Question

Undefined variable

  • September 1, 2010
  • 4 replies
  • 16196 views

4 replies

M
MikeArmstrong1-Visitor
1-Visitor
September 1, 2010

Just so I am certain on what your trying to do, can you confirm the output you would expect from the attached image.

Mike

K
KaiRussell1-VisitorAuthor
1-Visitor
September 1, 2010

Mike,

Got that example wrong - thought I had checked it - sorry!

In the attached example#2, the factor should equal (C D), but because the E is undefined the program will not return an answer

Kai

M
MikeArmstrong1-Visitor
1-Visitor
September 1, 2010

Something like the attached.

Just add a symbolic evaluation.

Mike

R
RichardJ19-Tanzanite
19-Tanzanite
September 1, 2010

Mike's symbolic calculation approach will work sometimes, but only if the symbolic solver can find a solution. That is far from guaranteed. Here's an old thread on the issue:

http://communities.ptc.com/message/128347#128347

They messed up the order of the posts when they transferred it from the Collaboratory, but not in a way that is too confusing

M
MikeArmstrong1-Visitor
1-Visitor
September 1, 2010

Richard Jackson wrote:

Mike's symbolic calculation approach will work sometimes, but only if the symbolic solver can find a solution. That is far from guaranteed. Here's an old thread on the issue:

http://communities.ptc.com/message/128347#128347

They messed up the order of the posts when they transferred it from the Collaboratory, but not in a way that is too confusing

Richard,

The attached worksheet doesn't seem to work.

Mike

R
RichardJ19-Tanzanite
19-Tanzanite
September 1, 2010

Which bit doesn't work? Do you see the matrix for the final evaluation of P?

J
jeanGiraud1-Visitor
1-Visitor
September 1, 2010

1. select what you want

2. spool to file what you want

3. operate in Mathcad what you want

4. operate in Excel [or else] what you want

___________________________________

Click left on the attached image

J
jeanGiraud1-Visitor
1-Visitor
September 3, 2010

How come ? hover on your text and is all shows as link ?

Your problem is not of defining or re-defining, no. Your problem is to properly select, thus assigning. You can ignore my suggestion or require more help, but for more help you would have to "save as 11" just to view a bit more for a more general construct.

Terms & ConditionsAccessibility statement