Scientific Calculator

Perform complex mathematical calculations including trigonometry, logarithms, exponentials, and factorial functions.

Key Takeaways & Quick Facts

Primary Purpose

Advanced browser-based scientific calculator.

Execution Environment

100% Client-Side In-Browser (Zero Cloud Uploads)

Standard Verification

Calculations tested against standard benchmarks

How to Use Scientific Calculator

Type your mathematical expression using the on-screen keypad or your keyboard.
Use parentheses to control the order of operations.
Toggle between DEG (Degrees) and RAD (Radians) for trigonometric functions.
Click "=" or press Enter to evaluate the expression.
Use "C" to clear the entire expression or the backspace icon to remove the last character.

How it Works

This Scientific Calculator uses a custom, safe mathematical parser (Tokenizer and Shunting-Yard algorithm) to evaluate expressions. It respects standard mathematical order of operations (BODMAS/PEMDAS) and evaluates advanced functions like trigonometry, factorials, and logarithms accurately without relying on unsafe JavaScript eval() functions.

Examples

Input: 5 * (3 + 4)

Result: 35

Input: sin(90) [in DEG mode]

Result: 1

Input: 5!

Result: 120

Frequently Asked Questions

What is the order of operations?

The calculator follows standard mathematical precedence: Parentheses, Exponents (Powers), Multiplication/Division, and Addition/Subtraction.

How do I use the factorial (!) function?

The factorial of a non-negative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120.

Formula Audited & Client-Side Private

Calculations are verified against standard mathematical and banking benchmarks. Data stays on your device in local memory.

Our Verification Standards →