Our guide to what’s highbrow, lowbrow, brilliant, and despicable. Tap or click each image below to enlarge. Thank you for subscribing and supporting our journalism. If you prefer to read in print, you ...

%Create the coefficient matrix A. A = [1 3 -2 0 2 0; 2 6 -5 -2 4 -3; 0 0 1 5 0 3; 1 3 0 4 2 9] %Create the column matrix b of constants. %Remember, to create a column matrix, the rows are separated by ...