Saturating Functions at a certain value

How do you saturate a function at a certain value on matlab? say for example I have the array x=[0:0.01:20] and the function expo=2.^x, and I want to plot the function expo with respect to x but I want the values to saturate when it reaches 1000 and remain equal to 1000 until the end of the array, looked up a bunch of stuff but all of it was useless.

Answer 1

[Fangjun Jiang]

x=[0:0.01:20];
expo=@(x) min(2.^x,100);
plot(x,expo(x));

[Momen Elhassan]

much appreciated, if it's not too much trouble how do you tweak that code to instead saturate a lower limit instead of an upper one.

[Fangjun Jiang]

help min

help max

[Momen Elhassan]

thanks

[Walter Roberson]

max(lower_limit, min(YourArray, upper_limit))