HOW TO UNPACK MATRIC IN MATHCAD PRIME

Forum|Forum|8 years ago
March 17, 2018
2 replies
3879 views

Dear Everyone,

Could you suggest me how to unpack matric in Mathcad Prime? (as PIC attached below)

Many thank for your help.
Best regard,

Phearun.

1_PC-5.rar

Other

Best answer by Werner_E

While I would prefer writing a small program to do the job, here is a way doing it without programming.

I have chosen an ORIGIN aware approach, but as it seems you hae changed ORIGIN from the default 0 to value 1, you sure could replace ORIGIN by 1 in the expression.

Note, that using your original data the result would still be just a 4x4 matrix. You still will have to explain how you would derive that 8x8 matrix you are asking for.

R

RichardJ

19-Tanzanite

Well that's a bug. You should ask yourself how that operation could result in a 4x1 nested vector. The answer is, "it can't".

Prime bug.JPG

To get to the next part of your question, how to expand a 2x2 nested matrix of 2x2 matrices into an 8x8 matrix, the answer is "you can't". Where would all the extra elements come from?

S

SPRstructur

Author

15-Moonstone

My purpose, I want to show all number elements of matrices as Prefer Answer , can?

W

Werner_E

25-Diamond I

Richard already explained that the display after the inline evalution is wrong and thats a Prime bug.

If you write c= you see the correct structure.

I could understand if you ask for a 4 x 4 matrix with all 16 values unnested, but I also don't understand how you would calculate the 64 values of the 8x8 matrix you are asking for!!

W

Werner_E

Answer

25-Diamond I

While I would prefer writing a small program to do the job, here is a way doing it without programming.

I have chosen an ORIGIN aware approach, but as it seems you hae changed ORIGIN from the default 0 to value 1, you sure could replace ORIGIN by 1 in the expression.

Note, that using your original data the result would still be just a 4x4 matrix. You still will have to explain how you would derive that 8x8 matrix you are asking for.