i have an Error using ^

Question

samuel herrera 2021-4-8

回答： madhan ravi 2021-4-8

can anyone help me fixing this code

n = 0:1:50;

y = (0.3)^(n)*cos(2*pi*0.05)*heaviside(n);

plot(x,y)

Error using ^ (line 51)

Incorrect dimensions for raising a matrix to a power. Check that the matrix is

square and the power is a scalar. To perform elementwise matrix powers, use '.^'.

and if i put the point it shows

n = 0:1:50;

y = (0.3).^(n)*cos(2*pi*0.05)*heaviside(n);

plot(x,y)

Error using *

Incorrect dimensions for matrix multiplication. Check that the number of

columns in the first matrix matches the number of rows in the second matrix. To

perform elementwise multiplication, use '.*'.

Answer 1

madhan ravi 2021-4-8

Change * to .* in all the places.