Is its possible to work with matrices in WolframAlpha? It is possible to do algebra like the one on the right, but entering the matrix is a bit unusual.

A matrix is entered between curly brackets in WolframAlpha (http://www.wolframalpha.com). Additionally, each row of the matrix is entered in curly brackets too. To carry out

you would need to enter the following on the WolframAlpha command line:

Notice that the matrix is in {} as is each row of the matrix.

You can also carry out matrix multiplication using curly brackets.