I hope to use enough points and show only a few repetitions to make a smooth graph.

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Changhyun Kim 2022-3-30

评论： Voss 2022-3-30

Plot the sinusoid 2*cos(2*pi*1500*t+pi/2), starting at t=0 seconds.

I want to use enough points and show only a few repetitions to make a smooth graph.

thanks for ur kindness

Voss 2022-3-30

% cos(t) has period 2*pi

% cos(2*pi*t) has period 1

% cos(2*pi*1500*t) has period 1/1500

% pick t values that span a few periods

% (i.e., a few multiples of 1/1500):

% 500 points, starting with 0, ending with 5/1500:

t = linspace(0,5/1500,500);

x = 2*cos(2*pi*1500*t+pi/2);

plot(t,x);

xlabel('t');

Changhyun Kim 2022-3-30

thank you for ur kindness

Voss 2022-3-30

You're welcome!

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