Asgalon Tikal Calculators Support Page

This is the support page for the Asgalon Tikal Calculators, which are available through the Apple App Store. An Android version is in preparation.

Tikal-25 scientific-technical calculator

This app emulates a calculator model from 1978. It is restricted to a 8 digits display, which is sufficient for most tasks. Internally, it uses 128bit Decimals for arithmetic operations and 64bit Doubles for transcendental functions, so rounding errors should be mostly negligible. The correctness of the calculations is verified with a set of now 45 unit tests that feed different types of calculations into the engine and verify the correctness of the displayed result against known values.

Whenever a choice had to be made between nostalgia and enhanced usability, normally I chose better usability. So the accuracy is much higher than possible in 1978, and the user interface uses dynamic elements to improve input feedback.

Basically, there is not much here yet, support-wise. I wrote this app because my calculator failed after 46 years and I decided to transfer it to the iPhone, and since it was quite an effort to develop this I am offering it to the public. I have no idea yet if there is any demand for this. The Tikal-25 app will receive updates from time to time. It depends a bit on the demand. We are a bit informal right now. In case of support needs please write a plain text email to support (at) tikal.asgalon.net

Hints and Tips

The Statistics Visualization, Log and Manual are reachable by tapping on the header line "⌥ Asgalon Tikal-25"

To Do

Localizations - Until now there is only rudimentary support for some languages. Translations for function symbols are missing, and especially the Arabic version needs more care for Eastern-Arabic numerals in the keypad and display and the mathematical symbols and functions. Will have to replace the 7 segment display with a normal monospaced arabic font there, I think. Also, I have to do some more research about variants in mathematical notation used in different locales using eastern arabic numerals. This will need some work, so the first variant will probably not be completed before version 1.4, to be followed by other arab-indian variants that are needed later.
Better Color Schemes
Some user configurable options
UI that works with Landscape mode too
Accessibility features
Android version, needs nearly complete rewrite

Known Problems

In version 1.0 on iPhone SE the display is clipped at the edges. This is fixed in 1.1
The Statistics View is a bit wobbly still. This needs improvement.
The Log sharing produces an obscure filename and type. Really, it is UTF-8 plain text for now and can be opened in a normal text editor after changing the extension to .txt.
The existing translations may be of poor quality. This will improve when the app pays enough to engage professional translators, or you send me translation proposals for your language to integrate.

Information

We don't really handle any customer data, but here is the obligatory Privacy Policy required by the App Store.