If img is an image then we can apply a matrix transformation A to the pixel at location (i, j) by A @ img[i,j,:] This is a matrix-vector product. Alternatively, if we are viewing the rgb vector as a ...

Vector spaces, linear transformation, matrix representation, inner product spaces, isometries, least squares, generalised inverse, eigen theory, quadratic forms, norms, numerical methods. The fourth ...

A number of articles have discussed the way lower order polynomial and interaction terms should be handled in linear regression models. Only if all lower order terms are included in the model will the ...