🧮 Scientific Calculator

Perform complex scientific, trigonometric, logarithmic, and algebraic calculations

Angle Mode:

How to Use the Scientific Calculator

Our online Scientific Calculator is an advanced mathematical tool designed for students, engineers, scientists, and professionals who need to perform operations beyond basic arithmetic. It supports trigonometric functions, logarithms, exponential powers, factorials, and constants.

Key Functions and Features

Degree (DEG) vs. Radian (RAD): Toggle between Degrees and Radians when calculating trigonometric functions (sine, cosine, tangent). 180° is equal to π radians.
Trigonometry (sin, cos, tan): Calculates the primary trigonometric ratios for a given angle. Inverse functions (sin⁻¹, cos⁻¹, tan⁻¹) compute the angle from a given ratio.
Logarithms (log, ln): log calculates base-10 logarithms, while ln calculates natural logarithms using Euler's constant e (≈ 2.71828).
Powers and Roots (xʸ, √, x²): Calculate square roots, squares, or raise any base to an arbitrary exponent.
Factorials (n!): Calculates the product of all positive integers less than or equal to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120.

Common Mathematical Formulas

Here are fundamental equations solved using a scientific calculator:

Pythagorean Theorem: c = √(a² + b²)
Euler's Identity: e^(iπ) + 1 = 0
Quadratic Formula: x = (-b ± √(b² - 4ac)) / (2a)
Logarithmic Identity: log_b(x) = ln(x) / ln(b)

Frequently Asked Questions (FAQ)

Q: Why do I get different results for sin(90)?
A: Check your angle mode. In Degree mode (DEG), sin(90°) = 1. In Radian mode (RAD), sin(90 rad) ≈ 0.8939.

Q: What is the difference between log and ln?
A: log(x) assumes base 10 (e.g., log(100) = 2). ln(x) is the natural logarithm with base e (e.g., ln(e) = 1).