Casio FX-CG10 Software User Guide - Page 192
To calculate the focus and length of latus rectum, Example
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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. 5-60