Functions with a single point of inerest used to be drawn on a tiny
interval around this point.
Now, an orthonormal window is built around the point of interest, giving
a much nicer view.
Change-Id: I7793797aead2695532ddea44d93d62bb7ef870f4
When looking for extrema in a function, we need to discard results where
the function growth rate is smaller than the precision of the float type
itself : these results are likely to be too noisy, and can cause false
positives.
e.g. : The sqrt(x^2+1)-x function
Change-Id: I6e2c002d7308b41a4c226d274cbb5d9efe4ea7db
Do not use the bounds of the interval when computing a refined range.
As the bounds are often integers, the zoom would give strange result on
some non-continuous functions (e.g. f(x) = x!).
Change-Id: Ie127fe15191cb3951cff223adc8dc3172188c789
The algorithm to search for points of interest will miss some. We reduce
the step to make it more precise, so that tan(x) and tan(x-90) have the
same profile.
Change-Id: Ia1bac1d4e7b98d2d6f36f8ce12ed9dac67d40198
The angleUnitVersion check is no longer needed, as changing the angle
unit with a trigonometric function set would leave the cursor hanging.
Change-Id: I17d99c05daeacfec953865158cdfe7706635cd32
The cursor now initially aligns with the grid, and tries to avoid points
where the function is not defined.
Change-Id: Ie3b304281f5848102c2f3c0aa5c031b351418186
Allow removing empty columns with backspace, the same way one can remove
empty rows. This allows deleting the internal columns that are not
automatically deleted.
Change-Id: I52def7939257942a8396721d01c4d1531ef90361
Empty columns and rows are only removed automatically when they are the
last row/column. This way, the user can edit a median row/column without
the matrix collapsing.
Change-Id: If611fa0133f270d785809d433ae879879b6b093f
When entering the Navigate menu, a portion of the Y axis is memoized to
preserve the grid units.
However, this portion was not modified when zooming, causing some
glitches.
Change-Id: I06b4ee044eaa75d48b8f338c9ef6ea33bb299e39
If the user opens the Navigate menu, then closes it immediately, the
Auto status is not turned off.
Change-Id: I2d1ca0cfdae1b9c957dede7bf9f3c2890dea1bb0
When using the Navigate menu on graphs, the grid units are computed
using the normal graph's range, so that the units won't change.
Change-Id: I8ff8853868e5c90319619a6271d6a7d87ae82ab0
UnitConvert must set UnitConversion to None, otherwise the unit asked
for in the conversion might get changed after being properly set in
UnitConvert::shallowBeautify.
