User Manual

5-13
3. Make V-Window settings.
4. Input the commands for drawing the rectangular coordinate graph.
5. Input the function.
Example Graph
y = 2x
2
+ 3x – 4.
Use the following V-Window settings.
Xmin = –5, Xmax = 5, Xscale = 2
Ymin = –10, Ymax = 10, Yscale = 5
1 m RUN
•
MAT (or RUN)
2 fx-9860GIII, fx-9750GIII: !m(SET UP)2(Line)J
3 !3(V-WIN) -fwfwcwc
-bawbawfwJ
4 !4(SKTCH) 1(Cls) w
5(GRPH) 1(Y=)
5 cvx+dv-ew
• Certain functions can be graphed easily using built-in function graphs.
• You can draw graphs of the following built-in scientific functions.
Rectangular Coordinate Graph Polar Coordinate Graph
• 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 • x
2
• log x • ln x
• 10
x
• e
x
• x
–1
•
3
'x
• • •
• sin
θ • cos θ • tan θ • sin
–1
θ
• cos
–1
θ • tan
–1
θ • sinh θ • cosh θ
• tanh θ • sinh
–1
θ • cosh
–1
θ • tanh
–1
θ
• ' θ • θ
2
• log θ • ln θ
• 10
θ
• e
θ
• θ
–1
•
3
' θ
- Input for x and θ variables is not required for a built-in function.
- When inputting a built-in function, other operators or values cannot be input.
u Graphing a Parametric Function
Your calculator can graph a parametric function represented by (X, Y) = (f(T), g(T)).
Example To graph using the function parameters below
x = 7cosT − 2cos3.5T y = 7sinT − 2sin3.5T
Use the following V-Window settings.
Xmin = −20, Xmax = 20, Xscale = 5
Ymin = −12, Ymax = 12, Yscale = 5
T
θ min = 0, T θ max = 4 π , T θ ptch = π ÷ 36
On the Setup screen, select “Param” for “Func Type”, and “Rad” for “Angle”.
1 m RUN
•
MAT (or RUN)
2 !m(SET UP) 2(Line)ccc*3(Param)ccc2(Rad)J
* fx-7400G
III: cc
dx
(
x
)
d
dx
2
(
x
)
d
2
∫(
x
)
dx