N null space, B = N(A) charpoly characteristic polynomial chol Cholesky decomposition, G = chol(A) cond condition number in 2-norm, r = cond(A) det determinant, r = det(A) fact factorial, r = fact(n) fib fib(n) prints the Fibbonaci sequence up to n integrate integrate function over an interval linear linear scale of n points, X = linear(xmin,xmax,n) lu LU reduction, lu(A,L,U) lup LU reduction with pivoting, lup(A,L,U,p) norm1 1-norm, r = norm1(A) norm2 2-norm, r = norm2(A) norminf infinite-norm, r = norminf(A) pinv pseudo-inverse, B = pinv(A) polymul polynomial multiplication polyval polynomial evaluation qroots quadratic roots, R = qroots(a,b,c) qrp QR decomposition with pivoting, r = qrp(A,Q,R,p) solve solve LUx=b, x = solve(L,U,b)