Help with symbolic evaluation.

[Sergey]

Hello.

I solved symbolically two equations by means of vector form (file attached, Chapter 3).

I took the expression of y1(x) and added to the expression of y2(x) and then equated everything to zero.

Is there any compact form of solving these equations in Mathcad? Solve block doesn't seems to work.

My solution looks messy.

Any feedback will be appreciated.

Best regards,

Sergey

[Werner_E]

I am not really sure what you are really looking for, but in Prime (on contrary to real Mathcad) you can't evaluate a solve block symbolically.

[Sergey]

Sorry for being unclear.

I took the expressions of the functions and solved them symbolically.

I want to take instead a definition of the function and use it in my symbolic solution instead (y1(x) and y2(x)).

[Werner_E]

Here is an approach with an ugly looking solution

The ugly look stems from the fact, that E and I are defined as floating point numbers and so the symbolic switches to float mode.

You may clear E and I only for symbolic calculation and the result looks nices. After all E  and I cancel and are not present in the result anyway:

You may also clear the other variables and make the result dependent on w and L additionally to x:

I also made y2 dependent on R.b to avoid the red error message which comes from the numeric processor but does not affect the symbolic evaluation.

[Sergey · Accepted solution]

I learned something new today.

Thanks a lot.