Casio fx-7400G PLUS Instruction Manual page 4

Chapter 4 Graphing
4. To exit the View Window, press Q.
k k k k k Initializing and Standardizing the View Window
u u u u u To initialize the View Window
a. Press !3 (V-Window) 1 (INIT) to initialize the View Window to the following
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• Pressing w without inputting any value also exits the View Window.
• The following is the input range for View Window parameters.
–9.99E+97 to 9.999E+97
• You can input parameter values up to 7 digits long. Values greater than 10
-1
less than 10 , are automatically converted to a 4-digit mantissa (including nega-
tive sign) plus a 2-digit exponent.
• The only keys that enabled while the View Window is on the display are: a to
j, ., E, -, f, c, d, e, +, -, *, /, (, ), ! 7,
Q. You can use - or - to input negative values.
• The existing value remains unchanged if you input a value outside the allow-
able range or in the case of illegal input (negative sign only without a value).
• Inputting a View Window range so the min value is greater than the max value,
causes the axis to be inverted.
• You can input expressions (such as 2π) as View Window parameters.
• When the View Window setting does not allow display of the axes, the scale for
y
the -axis is indicated on either the left or right edge of the display, while that for
x
the -axis is indicated on either the top or bottom edge.
• When View Window values are changed, the graph display is cleared and the
newly set axes only are displayed.
• View Window setting may cause irregular scale spacing.
• Setting maximum and minimum values that create too wide of a View Window
range can result in a graph made up of disconnected lines (because portions of
the graph run off the screen), or in graphs that are inaccurate.
• The point of deflection sometimes exceeds the capabilities of the display with
graphs that change drastically as they approach the point of deflection.
• Setting maximum and minimum values that create to narrow of a View Window
range can result in an error (Ma ERROR).
settings.
Xmin = –3.9
Xmax = 3.9
Xscl = 1
Ymin = –2.3
Ymax = 2.3
Yscl = 1
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or