拋物線的平移
Author: 藍邦偉  老師
Date: 10 12 月 2012

橫的拋物線

直的拋物線

       $⇑ $
$⇐$平移$ ⇒$
       $⇓$

上

下

右

左

拋物線的平移

頂點V(

h

k

,

)

c=

V

c

A_1 = Corner(1)
A_4 = Corner(4)
A_3: 1 / 4 * Corner[3] + 3 / 4 * A_4
A_2: 1 / 4 * Corner[2] + 3 / 4 * A_1
多邊形1, a_1, a_2, a_3, a_4 = Polygon(A_1, A_2, A_3, A_4)
g = Segment(A_2, A_3)
a = 2 (slider from 1 to 5, step 1)
b = 1 (slider from 1 to 5, step 1)
h = 0 (slider from -5 to 5, step 1)
k = 0 (slider from -5 to 5, step 1)
c_1 = false
d = false
inputBox1 = Textfield(h)
inputBox2 = Textfield(k)
u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
V: (h, k)
A = (-9.4, 4.46)
c = 1
inputBox4 = Textfield(c)
Γ_1: (y - k)^(2) = 4 * c * (x - h)
Γ_2: (x - h)^(2) = 4 * c * (y - k)
text10: "(x" + (If[h < 0, "+", "-"]) + (abs(h)) + ")²=" + (4 * c) + "(y" + (If[k < 0, "+", "-"]) + (abs(k)) + ")"
text3: "(y" + (LaTeX[If[k < 0, "+", "-"]]) + "" + (LaTeX[abs(k)]) + ")²=" + (LaTeX[4 * c]) + "(x" + (LaTeX[If[h < 0, "+", "-"]]) + "" + (LaTeX[abs(h)]) + ")"