Casio ALGEBRA FX 2.0 PLUS Manual page 9

Controlling What Appears on a Graph Screen
u V-Window Setting Precautions
• Inputting zero for T θ ptch causes an error.
• Any illegal input (out of range value, negative sign without a value, etc.) causes an error.
• An error occurs when Xmax is less than Xmin, or Ymax is less than Ymin. When T θ max
is less than T θ min, T θ ptch becomes negative.
• You can input expressions (such as 2π) 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, θ pitch value to be too large, relative to the
differential between the T, θ min and T, θ max settings. If the settings you make cause
the T, θ pitch value to be too small relative to the differential between the T, θ min and
T, θ 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
5-2-2
97 to 9.999999999 97
E
19990401