Casio fx-9750G PLUS - Manual (Page 151)

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8-5 Drawing Graphs Manually
After you select the RUN icon in the Main Menu and enter the RUN Mode, you
can draw graphs manually. First press ! 4 (Sketch) 5 (GRPH) to recall the
Graph Command Menu, and then input the graph function.
• { Y=}/{r=}/{Parm}/{X=c}/{G ∫dx} ... {rectangular coordinate}/{polar coordinate}/
{parametric}/{X = constant}/{integration} graph
• { Y>}/{Y<}/{Yt t t t t } /{Ys s s s s } ... {Y>f(x)}/{Y<f(x)}/{Y>f(x)}/{Y<f(x)} inequality graph
u u u u u To graph using rectangular coordinates (Y =) [Sketch]-[GRPH]-[Y=]
You can graph functions that can be expressed in the format y = f ( x ).
Example To graph y = 2 x 2 + 3 x – 4
Use the following View Window parameters.
Xmin = –5
Ymin = –10
Xmax = 5 Ymax = 10
Xscale = 2 Yscale = 5
1. In the set up screen, specify “ Y=” for Func Type and then press J.
2. Input the rectangular coordinate (Y =) expression.
!4 (Sketch)1(Cls)w
5 (GRPH)1(Y =) cvx+dv-e
3. Press w to draw the graph.
• You can draw graphs of the following built-in scientific functions.
• sin x • cos x • tan x • sin –1 x • cos –1 x
• tan –1 x • sinh x • cosh x • tanh x • sinh –1 x
• cosh –1 x • tanh –1 x • • x 2 • log x
• ln x • 10 x • e x • x –1 • 3
View Window settings are made automatically for built-in graphs.