Removed limitation in calculation of normal_distribution. It was used to
speed-up computation but yielded 0 for small values.
Previously P(X<5) with X->N(7,0.3162) gave 0 as a result
now it gives 1.26e-10
Change-Id: I3f1c997dfe2ba6424b372a0a82af6d9871443657
Changed dumpLayout's name to moveCursorAndDumpContent, as the name
suggested the method was only usable on layouts (while it also works on
text). The method is also no longer marked const, and the previous name
could imply that it had no side effects.
Likewise, renamed restoreLayout to restoreContent.
Change-Id: I46b320e74c07b48e256dc2146f9ecc15af38a8e6
When closing and reopening Calculation, if the cursor was on an
EmptyLayout, this layout would be invisible, instead of being denoted by
its usual yellow square.
This also fixes a bug that would leave the grey squares in matrices when
leaving and reopening the app, causing a failed assertion on the simulator.
Change-Id: Ib723797c079f1441f5cde174aa5c492ad4226335
Closing the Calculation app because of a full pool would crash the
device, by attempting to dump a layout with no node.
Change-Id: Ic926da61ae93f47eb576848788e1de5e3f94f5bb
FLT_EPSILON is now compliant with the definition : the difference
between 1 and the next representable float.
Change-Id: I4f79c3eee93447e76893d850bd84265c9d45aca5
This fixes a bug where, when drawing 1/x, a vertical bar would appear on
0, because of false positive cache hits.
Change-Id: I2eafeac5e254c8a556769a41c8edc532db44383a
Instead of being memoized all at once before display, functions values
are now stored at evaluation time. Fixed some quirks with caching
preparation.
Change-Id: I5d212c271c8c41a6dc9074a15c720f0bccf8ac40
The caches used for function values memoization are now stored in
ContinuousFunctionStore : there are now only a fixed number, instead of
one per function. This effectively enables caching only for the first
few functions on screen, while reducing the memory usage.
Change-Id: I2ade091717f73a14a756fe527c773db8e8627be7
Added a default argument to CurveView::drawCurve : a function to initiate the
memoization of continuous functions. The function is implemented in
ContinuousFunctionCache and provided by GraphView. This should be invisible
to other types of curves that rely on CurveView::drawCurve.
Change-Id: I59aa55d67154b6d4bf9614b7ed87c48408773d86
When evaluating a ContinuousFunction for a float value, the function
will first try to ask its cache (if it has been filled beforehand).
Change-Id: I519d2d3dcf344ba63e30a0f011db2306c7141315
ContinuousFunction now has an attribute of type ContinuousFunctionCache,
implementing methods to store and retrieve 320 float values, in order to
speed up function display in Graph.
Change-Id: I6f7ccdf3ae3c6dd8b08b93d786c8d0be7aa4dee8
Method InteractiveCurveViewRange::panToMakePointVisible now moves the
range of a whole number of pixels when panning horizontally. This allows
the cache of cartesian functions not to be invalidated.
Change-Id: Idb9904fef134dd13458e1f2287b0fe5145e8aec7
It appeared that without the packed keyword, the compiler did not handle
access to unaligned record data members, which leads to crashes on the
device.
Change-Id: I401f075e7f62458a4733baa8d81983d4be34b730
We now compute the value of the mantissa in double (instead of float)
to limit conversion error occuring for big numbers.
Change-Id: Ia61c052f0bc4a9196c53e2c7900eb48e3343d39c
New way of drawing sigma sign. Only a single branch is stored. The full
symbol is created by mirroring half a symbol.
Change-Id: I0fc32393203e51578c88b01125a907d402291534
Changed the look of the integral symbol and the positions of the upper
and lower bounds. Added a drawing of the window to explain the meaning
of various margins.
Change-Id: I3ffc07848dc9ad68dce3c0e01853d548e31dd152
Parenthesis collapsing is no longer handled by LeftParenthesisLayout and
RightParenthesisLayout, but by ParenthesisLayout itself.
Change-Id: I6797cd40ee02881544e01e9b88f31a597c51d179
Fraction are now only collapsed if they are the first thing to be
collapsed or if a parenthesis is open.
Change-Id: Ie7f3a99498b9981dff70221efd7de6bee6d0c379
When leaving the Calculation app, the layout currently being edited is
now stored in a buffer, to be restored when the app resumes.
Change-Id: I59c16e18f7193bdcbb36888b54cb2722897f85f5
Added some methods to manipulate the layout of a LayoutField from an
ExpressionField, like storing into and restoring from a buffer.
Change-Id: I7b7b5b53626f19237a5215bd196e897a518e9577
Created function Layout::LayoutFromAddress, which creates in the pool a layout
that has been stored in a buffer. Functionally identical to
Expression::ExpressionFromAddress.
Change-Id: I204e6b7d42f259ef2732563aa2a168a644060867
The cacheBuffer from EditExpressionController has been moved in the
snapshot, to act as a zone where layout information can be kept while
the app is inactive.
Change-Id: If9206abf77f37d6b984826e5f09658848381a75f
