Symbolic function with constant value - MATLAB

Hello everyone. I'm trying to plot different values of a function:

z = (1+s)/(-1+s^2)

with s from 1 to 100. I mean:

syms z  
syms s  
for s=1:100  
      plot(z)  
end

But that doesn't work!! It always give me the answer: z=(1+s)/(1+s^2)

How can I do to plot the different values of z? I mean: z(1) = 2/2 = 1, z(2) = 3/4 = 0.75 , ...

Thanks!

Answer 1

[Image Analyst]

Don't use syms - use actual numbers:

s = 1 : 100;
z = (1 + s) ./ (-1+s .^ 2)
plot(s, z, 'b*-', 'LineWidth', 2, 'markerSize', 13);
grid on;
xlabel('s', 'FontSize', 15);
ylabel('z', 'FontSize', 15);