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Table Of Contents
20050501
4-2-1
Inputting Equations
4-2 Inputting Equations
This section explains the various ways you can input equations using the Conics Editor
window.
Using a Conics Form to Input an Equation
Preset formats can help you input conics equations quickly and easily. The following table
contains a complete list of the types of equations that you can input just by tapping [Form]
and then [Insert Conics Form].
Equations
Horizontal Parabola 1
x
=
A
·
(
y
–
K
)^2 +
H
Horizontal Parabola 2
x
=
A
·
y
^2 +
B
·
y
+
C
Vertical Parabola 1
y
=
A
·
(
x
–
H
)^2 +
K
Vertical Parabola 2
y
=
A
·
x
^2 +
B
·
x
+
C
Circle 1
(
x
–
H
)^2 + (
y
–
K
)^2 =
R
^2
Circle 2
A
·
x
^2 +
A
·
y
^2 +
B
·
x
+
C
·
y
+
D
= 0
Ellipse
(
x
–
H
)^2 ÷
A
^2 + (
y
–
K
)^2 ÷
B
^2 = 1
Horizontal Hyperbola
(
x
–
H
)^2 ÷
A
^2 – (
y
–
K
)^2 ÷
B
^2 = 1
Vertical Hyperbola
(
y
–
K
)^2 ÷
A
^2 – (
x
–
H
)^2 ÷
B
^2 = 1
General Form
A
·
x
^2 +
B
·
x
·
y
+
C
·
y
^2 +
D
·
x
+
E
·
y
+
F
= 0
Conics Forms