Casio CFX-9800G-w Owners Manual - Page 119
Graph, Range, sc1:1, Ymin:-5, max:5, Y=2.096
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Notes •If you activate the Plot Function without specifying an x-coordinate and y-coordinate, the pointer appears in the center of the screen. •If you specify a point that is outside the range set up by the range parameters, the pointer does not appear on the display. •The x-coordinate value of the current pointer location is stored in the X value memory. The y-coordinate value is stored in the Y value memory. • To plot points in the GRAPH or TABLE Mode Example To plot a point on the graph represented by y = 2x2 - 3, with the following range parameters: Graph Range flan: max: sc1:1 Ymin:-5 max:5 sc1:1 WH FTIia First draw the graph for y = 2x2 -3 using the proced res described on page 181. c6 (TRW) Activate the Plot Funclion, and the pointer appears flashing in the center of the display Pointer Fa (Plot) X=0 Y=0 -202- Use the cursor keys to move the pointer around the display. El(Coord) X=1.06311291 Y=2.0961141 l (Coord) X=1.063829787 Y=2.096 4193 When,the pointer is at the location you want, press ID to plot a point. You can return the pointer to the center of the display at any time by pressing ®(Plot). E(Plot) X=0 Y=0 Notes '•You can switch the Plot Function off by pressing E(Cls). When you do, the graph is cleared from the display and then redrawn, without the points that you plotted. :•Whenever you are using the Plot Function, the location of the pointer is maintained in value memory. The x-coordinate is stored in value memory X, while the y-coordinate is stored in value memory Y. - 203-