Addition of Matrices in MathCAD

[benoitk2011]

Hi, I need to add 2 matrices in Mathcad, it should look like this

M1=(2,4,5,3,2,1,3,5,3)

With an index=(3,5,7)

I found that I need to add the amounts of

M2=(7,10,12)

The final result should be something like this

R=(2,4,5,10,2,11,3,17,3)

Anybody has a clue how to handle these?

 

[benoitk2011]

Here is a sheet that show the input information to ease answer

 

[IRstuff]

What you're asking makes no sense to me, but you'd simply do something like:

i:0;rows(index)-1

M1[index[i := M1[index[i + M2[i

The modified sheet is attached:

http://files.engineering.com/getfil...77-1120fcc4f9db&file=Mathcad_thread_hack.xmcd

TTFN

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[benoitk2011]

Thanks this is great! Cased closed