I need to limit a data set to 1000 points between -pi and pi

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Adam Dyson
Adam Dyson 2016-10-4
评论： Adam Dyson 2016-10-5
plot y = 10 cos(2t)on the interval −pi ≤ t ≤ pi with 100 points in the plot

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Daniel Pereira
Daniel Pereira 2016-10-4
编辑：Daniel Pereira 2016-10-4
I think this is what you want:
t = linspace(-pi,pi,100);
y = 10*cos(2*t);
plot(t,y);
% Pretty plot
set(gca,'xtick',linspace(-pi,pi,9),'xticklabel',{'-pi','-3·pi/4','-pi/2','-pi/4','0','pi/4','pi/2','3·pi/4','pi'});
xlim(t([1 end]));
grid on; box on;

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