How can I plot this anonymous function?

w0 = 200;

E = 200000;

I = 250.9*10^.6;

L = 6;

deflection = @(x) (w0/(120*E*I*L)).*(-(x.^5) + 2*(L.^2)*(x^.3) - (L.^4)*x);

rotation = @(x) (w0/(120*E*I*L)).*(-5*(x.^4) + 6*(L.^2)*(x^.2) - (L.^4));

derivofrotation = @(x) (w0/(120*E*I*L)).*(-20*(x.^3) + 12*(L.^2)*(x));

plot(x, rotation(x))

This is my code. When I run wihhout the plot function it raises no errors. When the plot is there the following errors are raised:

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 '.^'.

Error in

MATLAB_MAJOR>@(x)(w0/(120*E*I*L)).*(-5*(x.^4)+6*(L.^2)*(x^.2)-(L.^4))

(line 8)

rotation = @(x) (w0/(120*E*I*L)).*(-5*(x.^4) +6*(L.^2)*(x^.2) - (L.^4));

Error in MATLAB_MAJOR (line 14)

plot(x, rotation(x))

Why are these errors coming up and what can I do to stop them?

Answer 1

[Steven Lord]

(x^.2) 

You probably don't want to use the matrix power operator ^ to raise the square matrix x to the 0.2 power here. You probably want to raise each element of x to the 2nd power.

(x.^2)

[Isaac Gautreau]

Yes thank you! I messed up the order!