Casio FX-CG10 Manual de usuario Pagina 192

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u To calculate the focus and length of latus rectum
Example To determine the focus and length of latus rectum for the parabola X =
(Y – 2)
2
+ 3
Use the following V-Window settings.
Xmin = –1, Xmax = 10, Xscale = 1
Ymin = –5, Ymax = 5, Yscale = 1
m Conic Graphs
w
bwcwdw6(DRAW)
!5(G-SOLVE)
1(FOCUS)
(Calculates the focus.)
!5(G-SOLVE)
5(LENGTH)
(Calculates the length of latus rectum.)
When calculating two foci for an ellipse or hyperbolic graph, press e to calculate the
second focus. Pressing d returns to the first focus.
When calculating two vertexes for a hyperbolic graph, press e to calculate the second
vertex. Pressing d returns to the first vertex.
• Pressing e when calculating the vertices of an ellipse will calculate the next value.
Pressing d will scroll back through previous values. An ellipse has four vertices.
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