Skip to main content
O
Otilia1-Visitor
1-Visitor
December 11, 2020
Solved

combining two matrices column by column

  • December 11, 2020
  • 4 replies
  • 4866 views

I have two matrices in Mathcad 15 with the same number of rows each and the same number of columns each. The number of rows and columns are not fixed.

 

I want to obtain a combined matrix, as indicated below, where C1, C2, C3 are columns:

MatrixA_C1    MatrixB_C1    MatrixA_C2    MatrixB_C2    MatrixA_C3    MatrixB_C3    ...

 

See attached example in Mathcad 15.

 

Thank you,

Otilia

Best answer by Werner_E

Here are two functions to achieve the desired result.

The two matrices must have the same dimensions (same number of columns and rows) - there is no error check built in.

Werner_E_0-1607698779124.png

 

4 replies

F
Fred_Kohlhepp23-Emerald I
23-Emerald I
December 11, 2020

You can address each column of each matrix, A<0> means the zeroth(first) column of matrix A.

 

After that you can use the augment command:

 

result := augment(A<0>, B<0>, A<1>, B<1>,   )

 

For any single case you could write it out, for general use you could program it.

Fred_Kohlhepp_0-1607698159496.png

 

W
Werner_E25-Diamond IAnswer
25-Diamond I
December 11, 2020

Here are two functions to achieve the desired result.

The two matrices must have the same dimensions (same number of columns and rows) - there is no error check built in.

Werner_E_0-1607698779124.png

 

    A
    AlanStevens19-Tanzanite
    19-Tanzanite
    December 11, 2020

    Here's another option:

    g0.jpg

    Alan

      O
      Otilia1-VisitorAuthor
      1-Visitor
      December 11, 2020

      Thank you, the two solutions that consider x number of rows and  y number of columns work perfectly with my case, but  I can use the function for multiple variables which i have in the same calculation file (density, enthalpy, entropy).

      Otilia

      Terms & ConditionsCookie settingsAccessibility statement