Create an input array from -1*pi to 1*pi

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Aaron Kerr
Aaron Kerr on 23 May 2022
Commented: Torsten on 25 May 2022
% Create an input array from -1*pi to 1*pi
t=[3 4 5 6 7 8 9];
% Calculate |sin(t)|
x=abs(sin(t));
%plot result
plot(t,x);

Answers (1)

Walter Roberson
Walter Roberson on 23 May 2022
% Create an input array from -1*pi to 1*pi
t=-pi:pi;
% Calculate |sin(t)|
x=abs(sin(t));
%plot result
plot(t,x);
  5 Comments
Torsten
Torsten on 25 May 2022
If you set
t=[0 1 2 3 4 5 6];
x=abs(sin(t));
plot(t,x)
MATLAB takes the point (0,abs(sin(0))), (1,abs(sin(1))),...,(6,abs(sin(6))) and connects them in this order by straight lines in the plot.
Same for any array t that you define in advance.

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