Plotting functions

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WONG SIAN
WONG SIAN 2011-2-19
How to create a variable t that takes values from 0 to 2pie with step size 0.001 . I already given de value of y. I wish to know how to plot and versus t in separate figures. What about plot and versus t in the same figure and use different colour for each graph and label each of them.
Then if I want to divide a figure in two by using the subplot command, then plot and in the upper part and in the lower part which all plots versus t. how ya??

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回答（2 个）

Walter Roberson
Walter Roberson 2011-2-19
t = 0:.001:2*pi;
For the rest, see the documentation for hold(), plot(), and subplot()
Matt Fig
Matt Fig 2011-2-19
To elaborate on Walter's answer:
t = 0:.001:2*pi;
figure
plot(t,sin(t));legend('sin(t)')
figure
plot(t,cos(t));legend('cos(t)')
% Now on to subplotting:
figure
subplot(2,1,1)
plot(t,sin(t));legend('sin(t)')
subplot(2,1,2)
plot(t,cos(t));legend('cos(t)')

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