How to write for and while loops with restricted variable input with steps in function?

Dear Friends,

Could you tell me how to write for and while loops with restricted variable input with steps in function?

For instance;

-2<=x<=2

step:0.1

f(x)=((x^3+9)+(x^2-4))/(x*7+5))

so how can I write it to run properly and to make plot?

Answer 1

[Adam]

x = -2:0.1:2;

f = ( x.^3 + 9 + x.^2 - 4 ) ./ ( x*7 + 5 );

figure; plot( x, f )

You don't need loops at all. Matlab is built for vectorisation.