MATLAB Error Message while trying to Plot Magnification Factor

[amr55533]

Homework Statement

I am trying to make a plot of the magnification factor of an underdamped vibrating system versus the frequency ratio using MATLAB. However, my MATLAB skills are very basic and I keep getting an error message.

Basically I am trying to plot:

MF=1/√((1-r^2)^2+(2ζr)^2) where ζ=0.01

I will be making the plot for other values of ζ later.

Homework Equations

MF=1/√((1-r^2)^2+(2ζr)^2) where ζ=0.01

The Attempt at a Solution

http://img198.imageshack.us/img198/7758/matlabw.png

*The x-axis will range from 0 to 3.0

After this, I will use the code semilogy(r,MF); to generate the plot.

Thanks!

 

[cepheid]

Well, element-wise exponentiation is what you want. Did you try using .^ for ALL of the instances of ^ in your equation?

 

[amr55533]

I actually just figured that out. I kept leaving out the ".^" in front of the final power of 0.5. Thanks for the help!