Skip to main content
P
ptc-66705421-Visitor
1-Visitor
October 1, 2014
Question

Solving an equation symbolically

  • October 1, 2014
  • 1 reply
  • 4867 views

Just started using MathCAD today, so I am very new to it. I am basically trying to solve a complicated equation (shaft diameter sizing) with a bunch of known variables in terms of 1 unknown variable. I want to have the answer in symbolic terms so I can use the same equation for different sized shaft calculations. How the heck do I do this? I have been looking at the help files and other posts for some time now and still am not any clearer. Please see the attached file for reference.

Thanks in advance!

Rob

1 reply

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
October 1, 2014

You need to write your functions in terms of the variable so that they compute.

For multiple uses you can employ a "solve block" as a function; Mathcad will find the values that fit.

Attached is a "one of" solution for your problem as posed. Adding the solve block is left as an exercise . . .!

P
ptc-66705421-VisitorAuthor
1-Visitor
October 1, 2014

Thanks for the response, but not exactly what I am needing. I really need to have the equation solved for Te symbolically. Is there a way to do that, rather than just get a numerical answer?

W
Werner_E25-Diamond I
25-Diamond I
October 1, 2014

Thanks for the response, but not exactly what I am needing. I really need to have the equation solved for Te symbolically.

Why? In you first posting you wrote

"I want to have the answer in symbolic terms so I can use the same equation for different sized shaft calculations."

If thats your motivation, then no symbolic solution would be necessary.

Terms & ConditionsAccessibility statement