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Simple if statement always gives 0

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Tom Oud
Tom Oud 2019-6-5
评论： Tom Oud 2019-6-5
I'm trying to write a simple function which makes a value either 1 or 0 depending on the input. It looks like this:
function f = W(t)
if 0 <= t < (3/12)
f = 0;
end
if (3/12) <= t <= (8/12)
f = 1;
end
if (8/12) < t < 1
f = 0;
end
if t >= 1
t = t - 1;
end
end
However, no matter what the input is, it always returns zero. What's causing this?

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采纳的回答

Alex Mcaulley
Alex Mcaulley 2019-6-5
You need to put && between two comparisons as:
function f = W(t)
if 0 <= t && t < (3/12)
f = 0;
end
if (3/12) <= t && t <= (8/12)
f = 1;
end
if (8/12) < t && t < 1
f = 0;
end
if t >= 1
t = t - 1;
end
end
Also note that the last comparison is not returning anything

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