function y=heavi(x) % HEAVI - Heaviside Function. % % heavi(x) computes the Heaviside function of % a scalar or matrix of real numbers x. % % heavi(x) = 0 if x < 0 % heavi(x) = 1 if x >= 0 % Created: 6/95 by R. Knobel y = x>=0;