Function returning one value

clear

clc

close all

x = linspace(-8, 8, 19);

y = (x.*((x.^2)-1)/((x.^2)+1).^2);

figure

plot(x, y)

Answer 1

[Ameer Hamza]

You need to use element-wise division

y = (x.*((x.^2)-1)./((x.^2)+1).^2);
                 %^ put a dot here

Read about element-wise operators here: https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

[salar rohani nejad]

thank you so much

[Ameer Hamza]

I am glad to be of help!!!