Help plotting two lines on same graph

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Jenny Briggs
Jenny Briggs 2016-3-12
评论： Jenny Briggs 2016-3-12
Hi, I want to plot these two lines on the same graph:
plot((1/2)*[pl(1),pr(1)], (1/2)*[pl(1),pr(1)]);
plot([pr(1),(1/2)*pr(1)], [pl(2), (1/2)*pr(1)]);
Where pr=[0;0]
and pl=[1;0]
Any help would be greatly appreciated, Thanks

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Ced
Ced 2016-3-12
Call "hold on" after the first plot. Also, you could use the "line" function instead of "plot" here if you like.

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