Define the settling time t(s) in MATLAB

So I'm trying to figure out how to define the settling time in matlab. I want t(s) to be the minimum time after which both the magnitudes of x1(t) and x2(t) remain less than 0.01. How would I input that in matlab?

Answer 1

[Fangjun Jiang]

here is a clue,

find(and(abs(x1)>=0.01, abs(x2)>=0.01),'last')