直線的參數式(2)
Author: 藍邦偉  老師

移動A點決定直線上一點，B點決定直線的方向向量

直線的參數式(2)

的直線參數式為

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K_1: (x(Corner[1]), 0)
K_2: (x(Corner[2]), 0)
u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
T_1 = Corner(1)
T_4 = Corner(4)
T_2: (6.8 * Corner[1] + 3.2 * Corner[2]) / 10
T_3: (6.8 * Corner[4] + 3.2 * Corner[3]) / 10
多邊形1, t_1, t_2, t_3, t_4 = Polygon(T_1, T_2, T_3, T_4)
c = Segment(T_2, T_3)
A = (2, 1)
文字1: "A" + A
O = (0, 0)
B = Point(C)
w = Vector(O, B)
t = 0 (slider from 0 to 10, step 0.05)
P: A + t * w
文字5: "向量為(" + (x(B)) + "," + (y(B)) + ")"
P_1: A - t * w
文字3: "通過點A" + (LaTeX[A]) + "且方向"
text1: "\left\lbrace\begin{array}{ll} x=" + (LaTeX[x(A)]) + "" + (LaTeX[If[x(B) < 0, "-", "+"]]) + "" + (LaTeX[abs(x(B))]) + "t&  \\ y=" + (LaTeX[y(A)]) + "" + (LaTeX[If[y(B) < 0, "-", "+"]]) + "" + (LaTeX[abs(y(B))]) + "t&  \\ \end{array}\right.,t∈\mathbb{R}\"
z = Vector(A, P)
a = Vector(A, P_1)