Invalid use of operator. "*"

% compute the function y=exp (x2) * cos (20x) in the range x= -2:0.1:2. 

clc 

close all

x = -2: 0.1: 2;

y = cos(20*x). * exp(x.^2);

plot(x,y)

Answer 1

[Tommy]

Make sure the period is adjacent to the asterisk:

y = cos(20*x).* exp(x.^2);