Ezplot non-integer axis limits

Ezplot does not seem to let me use non integer axis limits.

I am trying to plot F which is a function of symbolic variable t ezplot(F,tmin:tmax) this seems to work only when tmin and tmax are integers so works for a range -1:1 but when I try -1:0.5 I get an error. Although -1:1 range shows values for 0.5.

Any ideas why this may be happening

Answer 1

[Sean de Wolski]

Here's what's happening. MATLAB is interpretting your expressions as necessary, when you say the limits are -1:0.5, it runs this:

-1:0.5
ans =
  -1     0

And because the default stride is 1, it returns -1 and 0. These are then interpretted as your limits. I think you probably meant

ezplot(F,[-1 0.5]) or similar

Here's an example:

syms t
F = sin(t)*cos(t);
ezplot(F,2*[-pi pi])

[Arun]

Thanks a lot. It was silly of me the right syntax is of course what u said [xmin xmax] rather than [xmin:xmax]

Answer 2

[Azzi Abdelmalek]

Look at this example

f=@(x) x.^2
ezplot(f,[-1  1])

Have you an example which didn't work?