How to use intervals within fplot?

So i have an matlab .m function file called f.m, which is a function f(x).

I can use the code below to plot the graph within for x=10-20

clear; clc
fplot(@f, [10 20])

is there a way to do this so I can make it more accurate too? so use an interval, for instance, 10:0.01:20?

I've tried

clear; clc
fplot(@f, [10:0.01:20])

but it won't run.

Anyone know how to do this? thanks.

Answer 1

[Christopher Creutzig]

In R2016a and beyond, you could use this:

fplot(@f,[10,20],'MeshDensity',100)

It's worth noting that fplot in these releases tries to automatically refine the plot density where needed, anyway.