Overview

The Scientific Calculator is a powerful tool designed for students, engineers, and professionals who need to perform advanced mathematical operations. It goes beyond basic arithmetic by offering trigonometric, logarithmic, exponential, and factorial functions — all accessible right in your browser with no downloads required.

Key Features

• Trigonometric Functions: Calculate sine, cosine, tangent, and their inverse functions (sin⁻¹, cos⁻¹, tan⁻¹). Hyperbolic variants (sinh, cosh, tanh) are also available.
• DEG/RAD Mode: Toggle between degrees and radians for trigonometric calculations — essential for engineering vs. pure math contexts.
• Logarithmic Functions: Compute natural logarithm (ln), common logarithm (log₁₀), and base-2 logarithm (log₂).
• Powers & Roots: Square (x²), cube (x³), nth power (xⁿ), square root (√), cube root (∛), and nth root.
• Exponential Functions: Calculate eˣ and 10ˣ directly.
• Factorial: Compute n! for combinatorics and probability calculations.
• Constants: Use π (Pi) and e (Euler's number) directly in your expressions.
• Memory Operations: Store and recall values with M+, M−, MR, and MC buttons.
• 2nd Function: Access inverse and alternate functions by toggling the 2nd button.
• Calculation History: Review previous calculations and click to reuse results.

How to Use

1. Enter an Expression: Use the number pad and function buttons to build your mathematical expression. The display shows your full expression as you type.
2. Choose Angle Mode: Before using trig functions, select DEG (degrees) or RAD (radians) depending on your needs.
3. Use Advanced Functions: Click on function buttons like sin, cos, log, etc. They automatically add the function with an opening parenthesis — just enter the value and close the parenthesis.
4. Toggle 2nd Functions: Press the "2nd" button to switch to inverse functions (e.g., sin becomes sin⁻¹, ln becomes log₂).
5. Calculate: Press "=" to evaluate the expression. The result appears in the display.
6. Use Memory: Press M+ to add the current result to memory, M− to subtract, MR to recall, and MC to clear memory.

Tips

• Keyboard Shortcuts: Use your keyboard for faster input — numbers, operators, Enter for "=", Escape for clear, and Backspace to delete.
• Parentheses Matter: Use parentheses to control the order of operations, especially with nested functions like sin(cos(45)).
• Check Your Mode: The most common mistake is computing trig functions in the wrong angle mode. Always verify DEG vs RAD before calculating.
• Chain Calculations: After getting a result, you can continue calculating by pressing an operator — the previous result is automatically used.

Common Scientific Functions Explained

• sin, cos, tan: Trigonometric ratios for a given angle, fundamental in geometry, physics, and engineering.
• ln (Natural Log): Logarithm base e (≈2.718), used in calculus, compound interest, and natural growth models.
• log (Common Log): Logarithm base 10, useful in decibel calculations, pH chemistry, and Richter scale measurements.
• n! (Factorial): Product of all positive integers up to n, critical in combinatorics, probability, and permutation calculations.
• eˣ (Exponential): The exponential function, fundamental in calculus, probability distributions, and compound growth.