Plotting a Quarter Circle in MATLAB

[jhnreid86]

Homework Statement

I am trying to plot simply a quarter of a circle but am having difficulty with it.

Homework Equations

The Attempt at a Solution

So far I have


x = 0:0.01:1;

for i = 0:length(x)

y = sqrt(1 - x(i)^2);

plot(x,y,'b-')

end


Basically what I am trying to do here is create a vector x with values from 0 to 1, and then plot each corresponding y coordinate.

I keep getting the following error

? Attempted to access x(0); index must be a positive integer or logical.

Error in ==> Untitled5 at 5
y = sqrt(1 - x(i)^2);


Any help would be greatly appreciated!

 

[mahdert]

you are trying to access the zeroeth index, MATLAB indices start with 1 and not 0.