2D 座標架
Author: 藍邦偉  老師

$ \Delta x $

$ y=f(x) $

$ \Delta y $

$ dy $

$ \lim_{ \Delta x \to 0 }\frac{\Delta y}{\Delta x}=\frac{dy}{dx} $

$\Delta x與dx $

u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
O = (0, 0)
Q_2: 0.8 * Corner[1] + 0.2 * Corner[2]
Q_3: (x(Q_2), y(Corner[4]))
poly1, q_1, q_2, q_4, q_3 = Polygon(Corner[1], Q_2, Q_3, Corner[4])
A = (-2.098208995601689, 0.731872992444819)
B = (1.3501472627800881, 2.3144304954864876)
C = (5.815587932480136, 5.270193271610108)
D = (7.17223883443702, 5.367096907464171)
f = Polynomial({A, B, C, D})
P = Point(f)
Q = Point(f)
R: (x(Q), y(P))
a = Segment(P, R)
b = Segment(Q, R)
c = Tangent(P, f)
E = Intersect(c, b)
d = LineBisector(a)
e = LineBisector(b)
F = Point(d)
G = Point(e)
g = CircleArc(G, R, Q)
h = CircleArc(F, P, R)
i = LineBisector(E, R)
H = Point(i)
k = CircleArc(H, E, R)