Plotting sine wave valley to valley

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Hello,
I am looking to create a sine wave that I can change the amount of time (or frequency) that the duration is and so that it does not start at 0. That way the line goes from valley to valley instead of mid length to mid length. Hopefully that makes sense.

Accepted Answer

Star Strider
Star Strider on 11 Aug 2022
Perhaps something like this —
t = linspace(0, 1, 250);
freq = 5;
s = sin(2*pi*t*freq + 3*pi/2);
figure
plot(t,s)
grid
Make appropriate changes to get the result you want.
.

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R2021a

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