MathCAD 15 not fully simplifying

Forum|Forum|14 years ago
July 19, 2011
3 replies
4422 views

I wrote a document for solving a statically indeterminate problem and everything work perfectly except that the values from the find(varr1,varr2..)--> are not in their simpilest forum, as shown in the image.

As you can see, it solves for both values, but it does not leave them in the simpliest forum. I also find it rather odd that it uses a mix of SI and Standard Units in the inital solution.

I've tried defining a 1x2 matrix as the find(varr1, varr2), but it flags a "variable is undefined" error. I've also tried using simplify, but that did not help.

Anyone have any idea why the find function isn't simplifying the answer?

1_Reactionary-Forces-3030-Short-Solenoid-Beam_BACKUP-xmcd.zip

Statistics_Analysis

V

VladimirN

24-Ruby III

Hello!

Use symbolical operators "float" and "simplify":

P.S. I also corrected the expression for the displacement/deflection - added the multiplication sign.

1_Reactionary-Forces-3030-Short-Solenoid-Beam_BACKUP_edit_MC15-xmcd.zip

W

wayne

12-Amethyst

Shaun,
In addition to Vladimir,

You are using US system, but your default is set to SI, change default to US and the mixed system will clear up.

I have added some comments, but, near as I can tell, there are some problems with some of the equations. One error is that a multiplication is actually defined as a function - MB() rather than MB*() -. But I have some question about the set up, you might want to review.

I changed to functions because I had better luck that way, but don't know if you need to.

Wayne

1_Reactionary-Forces-3030-wr-xmcd.zip

V

VladimirN

24-Ruby III

I would also like to note that when copying an answer from the "Find" for the reaction of "Rb" you forgot about the sign "-":