matlab语法

https://www.cnblogs.com/asxinyu/p/Basic_Matlab_Experience.html
https://www.yiibai.com/matlab

形状颜色
颜色
r Red
g Green
b Blue
c Cyan
m Magenta
y Yellow
k Black
w White

数据点的形状

• Plus sign
  o Circle

• Asterisk
  . Point
  x Cross
  'square' or s Square
  'diamond' or d Diamond
  ^ Upward-pointing triangle
  v Downward-pointing triangle

Right-pointing triangle
'pentagram' or p Five-pointed star (pentagram)
'hexagram' or h Six-pointed star (hexagram)