i want to plot an log function

i want to plot this equation

y=(r^3) ln (1/r)

and i use the following code

r = 0.01:0.001:1;

y = (r^3)*log(1/r);

plot(r,y)

can you help me to plot it, because this code has error?

error is

Error using /

Matrix dimensions must agree.

[Ive J]

element-wise (right array) division:

https://www.mathworks.com/help/driving/ref/quaternion.rdivide.html

Log plots:

https://www.mathworks.com/help/matlab/ref/loglog.html

https://www.mathworks.com/help/matlab/ref/semilogx.html

https://www.mathworks.com/help/matlab/ref/semilogy.html

Answer 1

[VBBV]

%true
r = 0.01:0.001:1;
y = (r.^3).*log(1./r); %element  wise 
plot(r,y);grid on