Finding another point on the curve

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Wern-Juin Choy
Wern-Juin Choy 2012-1-11
Lets say I have the following code which plots the curve out.
[y,t] = step(Pz);
plot(t,y);
I have found a point on the curve and would like to find another point which is very close to the first point.
The first point is (0.2011,0.0197).
The second point should be (0.2016,y).
How do I find the value of y for the second point?

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2012-1-11
try this is code:
yout = interp1(t,y,.2016)
ADD
yin - your value of y
tout = fzero(@(t1)yin - interp1(t,y,t1),0)

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