- Use this calculator on an iPhone, iPod Touch or an iPad
- Use your finger to quickly scroll through the stack to review intermediate results
- Copy and paste support
- Over 225 built-in operations, including trig, logarithms, real functions, complex operations and more
- Allows you to work with real, complex and integer numbers.
- Real and complex numbers can be displayed in standard, fixed, scientific and engineering format
- Integer numbers can be displayed in decimal, hexadecimal, octal and binary bases
- Work with real and complex matrices and vectors
- Enter symbolic expressions and solve them for different values. Even better, solve quadratic formulas, collect and expand factors and terms, find minima, maxima and roots of any expression.
- Plot symbolic expressions in X/Y coordinates. Pan the coordinate space by dragging the plot in any direction. Zoom in and out using a pinch gesture.
- Determine symbolic derivative, taylor series or numeric integral of an expression.
- Store numbers, lists, strings and expressions in symbols.
- Store statistical data and calculate totals, averages, standard deviations, linear regressions, etc over that data.
- Calculate the probabilities associated with standard distributions like the normal, F and T distributions.
- Errors are displayed at the top of the calculator display instead of in a modal alert in almost all cases.
- Long press on most buttons will perform a red shift. This is especially useful on an iPhone when looking at the left panel of buttons when the red shift button isn't handy. In previous versions, this was triggered with a 3D Touch. Now, either a long press or 3D Touch will trigger a red shift.
- Fix a crash that could happen if you try to use the solver on an expression which is self referential. In other words, if the expression directly or indirectly contains a symbol that leads back to the same expression.
- Fix a crash that could happen if you write a program which recurses infinitely. Now, when 250 levels of recursion has occurred, an error will be raised and the program will stop execution without crashing the calculator.
- If the calculator crashes when doing a plot, it will detect that happened on restart and will not try to plot the expression again. In prior releases, this would cause the app to crash on every relaunch and the only solution was to delete and re-install the app. That should not be required if a crashing bug happens in your plot.
- Fix a bug with the GET and GETI operations which could lead to a raw symbol being pushed onto the stack. Those operations now push an expression.
- Added support for Catalog which displays usage information for all built-in operations in the calculator. The information is built into the app so network access is not required to view this information. Every operation provides full information about its inputs and outputs and detailed usage information.
- Added support for Units which displays information about all of the built-in units in the calculator. The information is built into the app so network access is not required to view this information. Every unit has a full name, detailed description and its value in all base units. This feature requires unit conversion support which is available as an in-app feature upgrade.
- Added support for 3D touch on devices which support it. If you press hard on a button, it will turn into a red shift button. This is especially convenient when you are focused on the left pane of buttons. Prior to this feature, if you needed a red shift, you would need to scroll to the right pane of buttons and scroll back to the left pane again. Now, you can just push hard on any button on the left pane to get a red shift.
- Improved the scrolling behaviour of the display. It should reliably keep the cursor visible now.
- Fixed a crashing bug which can happen if an operation takes a bit longer to execute and then tries to update the stack at the same time the UI is trying to display the stack. This was a rare crashing bug due to a race condition and it should be fixed now.
- Fixed the root finding algorithm. Prior to this, it sometimes could not converge because the conditions for a "good" root value did not take into account some of the limits of double precision math. Instead, it would be stuck in an infinite loop until interrupted by the user pressing the Attn button. Now, it should more reliably converge.
- 13.2 MB
- Update Date:
- Halcyon Touch Software
Safe to Download