Trying to plot function

I have the function y = (x+2)^2/(3x+1) over the range 1=<x=<2 and when I graph it the plot stops at 1 on the x axis so when I put in the range into the data bounds it doesn't show up. I'm not sure if I'm typing the function out wrong or what I'm doing.

here is what I have:

clc;

x = linspace(0,1,100);

y = (x+2)^2./(3*x+1);

plot(x,y);

I've tried different values for the linspace, putting a "." before the ^2

Any help would be appreciated

Answer 1

[KSSV]

x = linspace(0,1,100);

y = (x+2).^2./(3*x+1);

plot(x,y);

REad about element by element operation...use .^ instead of ^.

[Ryan Elway]

Thank you but I have tried that. But for some reason the plot on the x axis is still stopping at 1. I will try to mess around with it a little more.

[KSSV]

The plot is stopping on xaxes at 1, because you have provided x values till 1 only.

See this:

x = linspace(0,100,1000);  % change limits here
y = (x+2).^2./(3*x+1);
plot(x,y);

[Ryan Elway]

Thank you again I actually figured it out I changed the linspace part to

x = linspace(0,2,100);

thanks again, my mistake

Answer 2

[Aryan Safaie]

Dear Ryan,

Are you sure that adding a '.' before the '^2' doesn't help? When I try the following line when calculating y, I get a plot that looks correct:

y = (x+2).^2./(3*x+1);

Best,

-aryan

[Ryan Elway]

I had x = linspace(0,1,100) instead of linspace(0,2,100) thank you for the help though!