Why with even numbers the sin looks completly different that with odd number

John Michell answered . 2025-07-30 11:30:35

Nicolas, the problem is with your use of linspace(). The way you are using it you are generating a vector with 100 points equally spaced between 0.1 and 10 million, so the spacing between each of your time points is on the order of 100,000!

 

t = linspace(0,40,4000);
delta1 = 0.1;
delta2 = 0.2;
y1 = sin(pi*delta1*t);
y2 = sin(pi*delta2*t);
plot(t,y1,'r');
hold on;
plot(t,y2,'b');

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