1.9
2014-11-16
- bugfixes for limit(), integrate(), sum()
- new function: expand()
- adjustments for iOS 8
1.8.6
2013-11-07
bugfix for comments being unselectable under some circumstances
1.8.5
2013-11-01
- bugfix for some of the built-in functions not being accessible
- bugfix for occasionally unselectable expressions
- iOS 7 adjustments
1.8
2013-08-15
- history lines now scroll independently
- share your work on the web
- import/export sessions to move them to other devices
- new functions: collect(), fibonacci()
- option to reorder items in the history or add comments
As usual, see the "what's new" part in the help.
1.7.7
2013-02-08
- fix for an issue with extremely small or large numbers in numeric mode
- few other small bugfixes
1.7.6
2013-02-01
some bugfixes in the algebra engine (mostly for the "div" and "limit" operations)
1.7.5
2012-10-26
- atan2(), angle() functions for easier rectangular->polar conversions
- rref() function calculates reduced row echelon form
- a few other minor improvements/bugfixes
1.7.2
2012-04-01
ver 1.7: Custom functions , linear algebra improvements, and a lot of other things, please read the "what's new" section in the help.
ver 1.7.2: bugfix for a crash in factor(), and a few other, smaller bugs. Also adjustments for the new iPad.
1.7.1
2012-03-09
ver 1.7: Lot of things, please read the "what's new" section in the help.
- Custom functions
- Improvements for linear algebra
- Many other things, bugfixes
ver 1.7.1: Fix for an issue in 1.7 where an expression assigned to a symbol occasionally wasn't substituted back.
1.7
2012-03-01
Lot of things, please read the "what's new" section in the help.
- Custom functions
- Improvements for linear algebra
- Many other things, bugfixes
1.6.2
2011-04-26
- bugfix: fixes problem with handling very large numbers in version 1.6.1
- some other minor changes and improvements
1.6.1
2011-04-13
1.6:
- variable names are not limited to a single character
- variable assignments are now part of a session (therefore can be saved, and are retained on app restarts)
- multiplication signs can be omitted in some cases
- optional degree mode for trigonometric calculations
- bugfixes, minor changes here and there
1.6.1:
fixes some bugs in 1.6 affecting matrix operations
1.6
2011-04-06
- variable names are not limited to a single character
- variable assignments are now part of a session (therefore can be saved, and are retained on app restarts)
- multiplication signs can be omitted in some cases
- optional degree mode for trigonometric calculations
- bugfixes, minor changes here and there
See the "what's new" section in the help for more details.
1.1
2010-11-03
bugfixes, minor improvements