Casio FXCP400 Manual De Usuario

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Chapter 4: Conics Application
  115
4-1  
Inputting an Equation
You can select one of the preset Conics Forms or input a conics equation manually. You can also transform a 
manually input equation to a Conics Form.
 
To input an equation using a Conics Form
1. On the Conics Editor window, tap q to displays the 
Select Conics Form dialog box.
2. Select the Conics Form of the type of equation you 
want to graph, and then tap [OK].
• This displays the Conics Editor window, which will 
contain the selected Conics Form.
3. Change the coefficients of the equation as required.
Horizontal Parabola 1
Horizontal Parabola 2
Vertical Parabola 1
Vertical Parabola 2
Circle 1
Circle 2
Ellipse
Horizontal Hyperbola
Vertical Hyperbola
General Form
 0401 
  To use a Conics Form to input the equation for a parabola with a horizontal axis (principal axis parallel 
with 
x
-axis)
 
To input an equation manually
Make the Conics Editor window active, and then use the soft keyboard for input.
 
To transform a manually input equation to a Conics Form
 0402 
  To transform the equation 
(
 − 1)
2
2
2
2
4
 + (
 − 2)
2
 = 
 to the standard Conics Form 
x
 = A
y
2
 + B
y
 + C
Tip
•  If the equation you input cannot be transformed into the standard Conics Form you selected, the message “Can’t 
Transform into This Type” appears.
•  An input equation may not transform correctly if it includes a square root calculation or some other function.
4-2  
Drawing a Conics Graph
Tip:
  You can drag the Conics Graph window screen to scroll (pan) its contents (except for Trace, Sketch, G-Solve, box 
zoom, and certain other functions).
Drawing a Parabola
A parabola can be drawn with either a horizontal or vertical orientation. The parabola type is determined by the 
direction of its principal axis.
• A parabola with a horizontal axis is one whose principal axis is parallel to the 
x
-axis. There are two possible 
equations for a parabola with a horizontal axis: 
x
 = A(
y
 – K)
2
 + H and 
x
 = A
y
2
 + B
y
 + C.
 0401 
  To draw the parabola 
x
 = 2(
y
 – 1)
2
 – 2
• A parabola with a vertical axis is one whose principal axis is parallel to the 
y
-axis. There are two possible 
equations for a parabola with a vertical axis: 
y
 = A(
x
 – H)
2
 + K and 
y
 = A
x
2
 + B
x
 + C.