Need some help with this... doesn't seem to be a decent example in my book. Appreciate any help!
1) Apply the transformation T to each and every element of E and write the result as a linear combination of E itself;
2) Take the transpose , if you apply transformations from the left and vectors from the right), or directly (otherwise) the coefficients matrix of the above: this is .
For example:
...
So the first two columns of are (or the first two rows if you write the map on the right of the vector).
Tonio