Fix landscape orientation and expression parse

Version 2.0 is a complete overhaul of Unlimited Calculator. Every part of the app has been rebuilt from the ground up. Critical bug fixes The BigInteger engine that powers every calculation in the app received several critical repairs. A long-standing bug caused the square function to compute a square root instead of a square, producing wrong results in RSA key generation and the math challenge mode. The comparison operators (less than, greater than) were reversed, silently flipping the result of every inequality. A memory leak in the Miller-Rabin primality test has been eliminated. Serialization of large numbers to disk was reading the wrong byte length, which could corrupt saved history entries. All of these issues are now resolved. New features The Explore tab introduces a mathematical fact of the day and a deterministic number of the day, refreshed every 24 hours. The expression undo and redo system uses a ring buffer that stores up to 50 states; shake the device to undo. The adaptive keyboard now shows only the symbols that are valid for the currently selected numeral base, reducing input errors. Results are displayed simultaneously in decimal, hexadecimal, binary, and octal in a dedicated panel. A matrix calculator handles operations on integer and real matrices. A finance calculator covers compound interest and loan amortization. The unit and currency converter supports dozens of categories. The function grapher supports pinch-to-zoom and drag-to-pan. A camera OCR scanner reads handwritten or printed mathematical expressions directly from the viewfinder. A home screen widget shows the last calculation and the first result of the day. The onboarding flow introduces new users to 50-digit arithmetic, the Collatz sequence, and the differences between the free and Pro tiers through three interactive screens. A math challenge mode presents increasingly difficult problems, tracks your streak and personal record, and lets you share your result. The rewarded ad system offers five unlock gates with flexible durations (hours, days, or single use). Pro users bypass all gates permanently. Themes and accessibility Three color schemes are available: system, light, and dark. The accent color can be customized. Every interactive element carries an accessibility label and hint, and important calculation events post VoiceOver announcements. Localization The app is fully localized in Italian, with more than 200 localization keys covering every screen, button, and error message.

- Live Currency Conversion: The unit converter now fetches real-time exchange rates automatically. Your last updated rates are cached on your device, allowing you to convert currencies offline without interruption. - Native Unary Minus & Implicit Multiplication: We have upgraded the mathematical engine! You can now naturally type negative numbers (like -5 or sin(-x)) and implicit equations (like 2(x+3)) without having to manually insert extra operators. - Advanced Graphing & Presets: Plot up to 3 mathematical functions simultaneously in distinct colors. Easily load common formulas (trigonometric, polynomials, or advanced functions like Sigmoid) from the new presets menu, and drag your finger to interactively snap to coordinates on the chart. - History Search, Notes & Export: Take complete control of your history. You can now search through past calculations, add custom notes or labels to your items, and easily export your history as a formatted text file using the system share sheet.

Improved Cursor Precision: Fixed a bug where the cursor would misalign or display incorrectly when long numbers wrapped across multiple lines. Smoother Editing Experience: Moving the cursor through numbers is now perfectly stable. The annoying text-shifting and wiggling effect when navigating left or right has been eliminated. Under the Hood: Minor optimizations and compliance updates for a smoother App Store experience.

Pinpoint Precision & A Cleaner Look! In this update, we’ve been working hard behind the scenes to make Unlimited Calculator more powerful and elegant than ever. Here’s what’s new: We’ve completely rebuilt our calculation engine for trigonometric functions (Sin, Cos, Tan) and logarithms. Your scientific calculations are now vastly more precise and reliable, flawlessy handling even the most complex edge cases. Cleaner, Focused Interface: We listened to your feedback! We’ve streamlined the calculator by tucking away rarely used advanced functions. You now get a cleaner, modern interface focused entirely on your core workflow. Visual Polish & Bug Fixes: Fixed minor visual glitches (including the clipping issue in the hourglass animation) and perfectly adjusted the app icon scaling. Keep calculating without limits! If you enjoy the app, please leave us a review.

- improve UI experience - add exp and sqrt function - fix bugs

Add settings and history page

New UI, less operation but more tested! A footer banner to support other improvements TODO: add more operations, settings and history

fix bug and use swift 3.0

new Graphic and more usability

Bug fix and iOS 9.1 support

Bug fix Little graphic improvement Trigonometric function

Bug fix New Graphic!