Take the 2-minute tour ×
Mathematica Stack Exchange is a question and answer site for users of Mathematica. It's 100% free, no registration required.

mA = {{a11, a12}, {a21, a22}}; mB = {{b11, b12}, {b21, b22}}; mC = {{c11, c12}, {c21, c22}}; mD = {{d11, d12}, {d21, d22}}; v={{mA},{mB}}; w={{mC},{mD}};

What I want is a dot product between w and v:


share|improve this question

closed as off-topic by Sjoerd C. de Vries, belisarius, gpap, RunnyKine, Jens May 19 '14 at 15:50

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question arises due to a simple mistake such as a trivial syntax error, incorrect capitalization, spelling mistake, or other typographical error and is unlikely to help any future visitors, or else it is easily found in the documentation." – Sjoerd C. de Vries, belisarius, gpap, RunnyKine, Jens
If this question can be reworded to fit the rules in the help center, please edit the question.

What I want is a summer house. here, here and here –  Sektor May 19 '14 at 8:04
@Sektor Ping me when you've beer in the fridge –  belisarius May 19 '14 at 13:56
@belisarius Then I am pinging you right away ! I always have beer in the fridge :D –  Sektor May 19 '14 at 14:03
@Sektor I have been reading those pages before. How do you get DotProduct or . doing what I described above? Like you can check yourself w.v neither DotProduct[v,w] give the right result. Maybe you could post a code snippet? –  newandlost May 21 '14 at 6:03
So, you are telling me you can't implement this specific function yourself ? With the link I provided ? That's also easily found in the documentation or here, around SE. –  Sektor May 21 '14 at 8:41

Browse other questions tagged or ask your own question.