Casio FX-9860GII Calculator User Manual


 
5-3
S To make V-Window settings
1. From the Main Menu, enter the GRAPH mode.
2. Press (V-WIN) to display the V-Window setting screen.
Rectangular coordinate parameter
Xmin/Xmax … Minimum/maximum
x-axis value
Xscale … Spacing of
x-axis increments
Xdot … Value that corresponds to one
x-axis dot
Ymin/Ymax … Minimum/maximum
y-axis value
Yscale … Spacing of
y-axis increments
Polar coordinate parameter
T
Q
min/T
Q
max ... Minimum/maximum T,
Q
values
T
Q
ptch ... T,
Q
pitch
3. Press A to move the highlighting and input an appropriate value for each parameter,
pressing U after each.
•{INIT}/{TRIG}/{STD} … V-Window {initial settings}/{initial settings using specified angle
unit}/{standardized settings}
•{STO}/{RCL} … V-Window setting {store}/{recall}
After settings are the way you want them, press ) or )(QUIT) to exit the V-Window
setting screen.
Pressing U without inputting anything while I (busy indicator) is displayed exits the
V-Window setting screen.
S V-Window Setting Precautions
Inputting zero for T
Q
ptch causes an error.
Any illegal input (out of range value, negative sign without a value, etc.) causes an error.
When T
Q
max is less than T
Q
min, T
Q
ptch becomes negative.
You can input expressions (such as 2P) as V-Window parameters.
When the V-Window setting produces an axis that does not fit on the display, the scale of
the axis is indicated on the edge of the display closest to the origin.
Changing the V-Window settings clears the graph currently on the display and replaces it
with the new axes only.
Changing the Xmin or Xmax value causes the Xdot value to be adjusted automatically.
Changing the Xdot value causes the Xmax value to be adjusted automatically.
A polar coordinate (
r =) or parametric graph will appear coarse if the settings you make in
the V-Window cause the T
Q
ptch value to be too large, relative to the differential between
the T
Q
min and T
Q
max settings. If the settings you make cause the T
Q
ptch value to be
too small relative to the differential between the T
Q
min and T
Q
max settings, on the other
hand, the graph will take a very long time to draw.
The following is the input range for V-Window parameters.
–9.999999999
E
97 to 9.999999999
E
97