Matrix multiplication

[Sergey]

Hello!.

Please, help with the following issue:

I have defined two matrices and use them in equation where they are being multiplied. By some reason I get only one value instead of an array. If I define the one matrix ("k") as a variable, then the computation goes on, as it should, and I get an array. What I am doing wrong?

[Fred_Kohlhepp · Accepted solution]

Vector times vector creates dot product.  You need to "vectorize"

[Sergey]

Thank you. I keep forgeting that mathcad computing it as the dot product.