plotting a graph on matlab

Hi I'm trying to plot a graph on MATLAB for the steady state armature current with respect to the frequency coeffiecient B. I need to graph it for a range of B from 0 to infinity. I tried the code:

clc;
clear all;
k=input('Enter constant k');
Ra=input('Enter resistence Ra');
for B=0:007
    x=(Ra*B)+(k*k);
    iss=B/x;
    plot(B,iss)
    xlabel('B')
    ylabel('iss')
end

But the graph is empty. What should I do?

Answer 1

[KSSV]

Read about element by element operations in MATLAB.

clc;
clear all;
k=input('Enter constant k');
Ra=input('Enter resistence Ra');
B=0:007
x=(Ra*B)+(k*k);
iss=B./x;
plot(B,iss)
xlabel('B')
ylabel('iss')

[Prakriti Biswas]

Alright, could you help me plot the same thing for a range of 0 to infinity?

[KSSV]

As there is no way to represent the infinity in codes..you make your required number B very high..may be you can use:

db = 1. ;  % the step size 
B = 0:db:10^3 ;