MATLAB: I need help ploting a graph

graphhelp plotingMATLAB and Simulink Student Suite

when i try to plot a graph made of this equation i get an error saying Error using ^

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'.^'. i've tryed to plot it like this:

x=[0:0.1:40]

and

y=5*(1-0.5772156649^(-x/4.8))

pls halp

y=5*(1-0.5772156649.^(-x/4.8))

x=0:.01:2*pi;
y=exp(1).^x;
plot(x,y)

The ‘equ’ function needs to use element-wise operations (using the dot operator):

r= linspace(0.001,0.1);
equ = 1000*((1+r)./r).*((1+r).^5 -1);
plot(r, equ)

See the documentation on Array vs. Matrix Operations for an extended discussion.