1.9
2014-10-16
- adjustments for iOS 8 and new devices
- bugfixes for limit(), integrate(), sum()
- new function: expand()
1.8.5
2013-11-04
- bugfix for some expressions being unselectable under some circumstances
- some bugfixes in the algebra engine
- iOS 7 UI elements (if you prefer the original style, you can switch back in the settings)
1.8.4
2013-09-18
bugfix for a problem in 1.8.3 making vlen, vdot, vcross unusable under some circumstances
1.8.3
2013-09-16
- bugfix for occasional slowdowns on older devices
- bugfix for a problem with limit()
- adjustments for upcoming iOS changes
1.8.2
2013-08-15
1.8:
- 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.
1.8.2: fixes for some minor bugs
1.8.1
2013-08-08
1.8:
- 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.
1.8.1:
Fix for a rare crash that happened when the app failed to read saved data from pre-1.8 versions.
1.8
2013-08-06
- 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
2012-10-15
- support for the larger screen of iPhone 5
- "ans" value for quickly reusing the last result
- angle(), atan2() functions for easier rectangular->polar conversions
- rref() function for reduced row echelon form
- and a few other minor improvements, bugfixes
1.7.2
2012-04-02
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 smaller ones
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.
1.5.1
2010-11-01
ver 1.5:
- session management (read the help!)
- simpler results from solve() and integrate() in some cases
- retina display support
- other minor changes, bugfixes
ver 1.5.1:
- bugfixes
1.5
2010-10-20
- session management (read the help!)
- simpler results from solve() and integrate() in some cases
- retina display support
- other minor changes, bugfixes
1.4.3
2010-05-19
ver 1.4: bugfixes, minor tweaks, added matrix transpose function and partial fraction expansion
ver 1.4.3: a bugfix and some minor changes
1.4.2
2010-05-12
ver 1.4 : bugfixes, minor tweaks, added matrix transpose function and partial fraction expansion
ver 1.4.2 : minor changes, a small bugfix
(stay tuned, there is more to come...)
1.4.1
2010-04-27
version 1.4:
bugfixes, minor tweaks, added matrix transpose function and partial fraction expansion
stay tuned, there is more to come!
version 1.4.1: bugfix resolving serious crashes in 1.4 mostly on 1st/2nd gen devices (sorry for that)
1.4
2010-04-23
bugfixes, minor tweaks, added matrix transpose function and partial fraction expansion
stay tuned, there is more to come!
1.3
2010-02-24
- Prime factorization ( ifactor(x) )
- Added option to convert result to scientific notation (see FAQ)
- bugfixes
1.2.2
2010-02-05
minor improvements, bugfixes
1.2.1
2009-12-31
ver 1.2: new UI, bigger keys, landscape mode, qwerty keyboard
ver 1.2.1: minor improvements, bugfixes