2D 座標架
Author: 藍邦偉  老師

u=Vector[(x(Corner[1]), 0), (x(Corner[3]), 0)]

v=Vector[(0, y(Corner[1])), (0, y(Corner[3]))]

O=(0,0)

2D座標架的建立

u=Vector[(-3,0),(6,0)]

v=Vector[(0,-3),(0,6)]

O=(0,0)

u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
O = (0, 0)
n = 1 (slider from 1 to 6, step 1)
A = (0.4, 5.44)