Scientific Calculator Pro is a powerful, precise, and privacy-focused mathematical calculator designed for students, engineers, scientists, and professionals. Built with modern Android technologies, it provides a comprehensive suite of scientific and arithmetic capabilities in an intuitive Material 3 interface that operates completely offline.

### Key Features:

**Core Operations**
• Addition, subtraction, multiplication, division, percentage, and modulo
• Parentheses with automatic balancing and nesting support
• Result reuse (Ans) and fast clipboard copying
• Full memory controls (MC, MR, M+, M-, MS) with persistent state

**Scientific Functions**
• Trigonometry: Sine, cosine, tangent (in degrees or radians)
• Inverse Trigonometry: asin, acos, atan
• Hyperbolic Functions: sinh, cosh, tanh, asinh, acosh, atanh
• Powers & Roots: Square, cube, general exponentiation (x^y), square root, cube root, nth root
• Logarithms: Natural logarithm (ln), base-10 logarithm (log10), exponential function (e^x)
• Advanced Math: Factorial (x!), absolute value (|x|), permutations (nPr), combinations (nCr), floor, ceil, round, and random numbers
• Constants: High-precision Pi (π) and Euler's number (e)

**Calculation History**
• View full calculation history in reverse chronological order
• Tap any past expression to restore it directly to the editing canvas
• Tap any result to reuse it in your current calculation
• Delete individual entries or clear all history with confirmation

**Customizable Settings**
• Material 3 Light, Dark, and System Default themes
• Customizable display precision (6 to 15 digits)
• Number formatting: Automatic, Decimal, Scientific, and Engineering notation
• Optional thousands separators (e.g. 1,000,000)
• Configurable haptic feedback and subtle keypress sounds
• Keep screen awake mode for continuous study or lab sessions

**100% Private & Offline**
Scientific Calculator Pro requires zero network permissions, collects no data, contains no advertising, and uses no tracking or analytics SDKs. All data remains strictly on your device.