Plotting a curve issue. i used to draw curves by semilogy but now i don't want it in logarithmetic form!

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mary
mary 2014-5-5
评论： Star Strider 2014-5-5
consider the following
a=[3/4 1/2 1/4];
bb=[4.1 3.3 2.7];
cc=[5.9 5.2 4.7];
dd=[7.9 7.6 7.3];
plot(a,bb,'red','LineWidth',2); hold on
polt(a,cc,'blue','LineWidth',2); hold on
plot(a,dd,'black','LineWidth',2); grid
how can i plot those three curves?

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Star Strider
Star Strider 2014-5-5
编辑：Star Strider 2014-5-5
Slightly changing your code:
a=[3/4 1/2 1/4];
bb=[4.1 3.3 2.7];
cc=[5.9 5.2 4.7];
dd=[7.9 7.6 7.3];
figure(1)
plot(a,bb,'red','LineWidth',2);
hold on
plot(a,cc,'blue','LineWidth',2);
plot(a,dd,'black','LineWidth',2);
hold off
grid
It works fine for me. Both axes are linear. Is that what you want?

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