The Settings menu
- The first switch is easy enough to understand... If
you prefer degrees, just toggle it to Off. It defaults to
On (radians)
- The second is a bit more difficult to guess. When
<<Adaptive algorithm>> is off, for drawing a
representative curve (f,g,h,f') the plotting procedure
will calculate one value for each horizontal pixel (320
or 480) and it will connect every point calculated, which
is fine for the majority of functions. It might not be
adequate though when you have either discontinuities, or
a very fast oscillating function for which it is better
to compute more values here and there.
- The next switch <<High quality>> works
with the former, by allowing even more points to be
computed, and a few more tests will be done as well.
Note that those two switches also apply to parametric
(cartesian or polar) curves.
The <<High quality>> switch enables the
<<Adaptive algorithm>> one if necessary
To see this modes in action, go to see this video.
- The next switch <<Show grid>> speaks for
itself
- You can set independantly logarithmic scales for x
and y axis. Note that the grid will be automatically
enabled if one logarithmic scale is chosen.
- Then you can choose to lock aspect ratio, meaning
that rescaling ratio for both axis will be the same when
zooming in/out.
- The perspective switch only relates to 3d graphing,
allowing you to choose between orthographic and
perspective projections.
- Then you can adjust default minimum and maximum
values for the axis. They will be used with the
<<Reset axis>> button on the graph view. Note
that when a logarithmic scale is used, values chosen are
log10 values, so 2.5 for example stands for 10^2.5.
To see a video with this settings, follow this link.
- You can also opt for manual tickmarks by entering a
value for xTicks and/or yTicks. Note that 0 or a negative
value will get you back to automatic tickmarks, and a
value near enough Pi, such as 3.14 will choose Pi for
tickmarks width. Be aware that with manual tickmarks and
excessive zooming, the drawing can appear weird, so
automatic mode, which is the default, is often
preferable.