matlab中如何绘制图形符号？
 

比如说将两个点用图形符号连接起来。不知道是否有这样的功能？

还有一个问题就是：
set(gca,'XtickMode”,”manual','Xtick',[0 0.2 0.3 0.5 1]);中
gca是个什么东东啊？

有
plot中就有

gca=get current axes

[QUOTE=wtclaw;10228]有
plot中就有

gca=get current axes...[/QUOTE]
非常感谢，plot中的图形符号是否能够设置大小啊？

GCA Get handle to current axis.
H = GCA returns the handle to the current axis in the current
figure. The current axis is the axis that graphics commands
like PLOT, TITLE, SURF, etc. draw to if issued.
Use the commands AXES or SUBPLOT to change the current axis
to a different axis, or to create new ones.

这个可能有用
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