Eleven | Calculator 1.41

This calculator app for iPhone and iPad presents a comprehensive solution for everyday calculations with a range of innovative features.

• Real-time calculations: The app does not require an equals button; results are computed automatically as the user types.
• Clarity in operations: Users can view and edit their entire calculation at any time, minimizing confusion.
• Flexible input: Users can enter calculations of significant length, with the display and keypad resizing accordingly.
• Edit with ease: The interface allows for tapping or sliding across the display to adjust calculations at any point.
• Unlimited Undo and Redo: Mistakes can be corrected effortlessly.
• Enhanced readability: Differentiated colors are used to distinguish between numbers and operators for easier comprehension.
• Dynamic buttons: Only relevant buttons illuminate based on context and cursor position, streamlining the user experience.
• Aesthetic design: The application features a visually appealing analog-style design.
• Customizable themes: Choose from four included themes or skins to suit personal preferences.
• Speed: Operations occur with impressive rapidity.

The app supports all basic operations including addition, subtraction, multiplication, division, and square root calculations. Advanced functionalities are also included, such as cube roots, squaring, and cubing. It accommodates expressions with parentheses and can handle results up to ± 10³⁰⁰. A convenient long-tap option allows users to copy results directly to the clipboard.

An optional scientific calculator feature is available through an in-app purchase, providing additional capabilities in landscape orientation:

• Power function with customizable exponent
• Edit degrees for root functions
• Edit base for logarithmic functions
• Trigonometric functions: sine, cosine, tangent
• Inverse trigonometric functions: asin, acos, atan
• Hyperbolic functions: sinh, cosh, tanh
• Inverse hyperbolic functions: asinh, acosh, atanh
• Factorial function (integers only)
• Modulo (remainder) operator
• Smart constants: π and e
• A smart random number generator
• No mode switching -- all functions are readily available without delay