Mathcad prime 5.0 matrix multiplication

[BB1]

why the same inverse is not working in program?, but outside its working fine, 

Please check the attachment.

[LucMeekes]

Do not (only) post pictures, post the worksheet!. In this case it's important to know what the error message is. Here I can guess:

"Undefined variables" or so.

You are requesting the numeric answer from symbols that have not been numerically defined.

Symbolic evaluation would (most probably) have given you a (symbolic) answer.

Lesson: it is important to realize that Prime (as well as Mathcad) has a numeric engine and a symbolic engine. They can do many the same tricks, but the numeric processor requires variables to be numerically defined and understands units. The symbolic processor can happily work with undefined symbols, but cannot manipulate units (it treats them as unknown symbols).

Success!
Luc

[BB1]

Thanks for your answer,

Can i solve symbolically in program??

[Werner_E]

---

@BB1 wrote:

Thanks for your answer,

Can i solve symbolically in program??

---

In Prime you can't use the symbolics IN a program. This would be possible to do with some limitations in real Mathcad (version 15 and below).

But you can evaluate your program symbolically instead of evaluating it numerically.

[BB1]

I want to solve that symbolically only, can you tell how to do??.

[Werner_E]

---

@BB1 wrote:
I want to solve that symbolically only, can you tell how to do??.

---

???? But thats what we just did! The solution was found using symbolics.

Not sure what you are looking for exactly.

Would the answer here help:

https://community.ptc.com/t5/PTC-Mathcad/Mathcad-prime-5-0/m-p/585741/highlight/true#M183833