Why is this scipt resulting in a blank plot?

Hello I am relatively new to MatLab and I am currently trying to plot a 4th degree rational function.

The script is as follows:

hold on
m = 5.987*10^5; %mass of pendulum
M = 2.495*10^6; %mass of building
L = 12.6; %length of pendulum
k = 1.899*10^14; %building stiffness constant
g = 9.81;
w = [-50000 : 100 : 50000];

y = ((-w.^2*m*L^2+m*g*L)*k)/((-w.^2*(M+m)+k).*(-w.^2*m*L^2+m*g*L)-(w.^4*m^2*L^2));
plot(w,y);

The result is a blank plot with no curves on the figure. Any suggestions or solutions?

Thanks

Answer 1

[Walter Roberson]

y = ((-w.^2*m*L^2+m*g*L)*k) ./ ((-w.^2*(M+m)+k).*(-w.^2*m*L^2+m*g*L)-(w.^4*m^2*L^2));

[kevmister7]

Thank you so much, I forgot that the division also needs to be entity division! Thanks again