科学计算器

关于科学计算器

Our free online scientific calculator is designed for students, engineers, scientists, and anyone who needs advanced mathematical calculations. It runs entirely in your browser with no server required, ensuring your data stays private.

The calculator supports a wide range of scientific functions including trigonometry, logarithms, exponents, factorials, and more. You can switch between degrees and radians for trigonometric calculations, use memory functions to store intermediate results, and review your calculation history.

功能特点

• Basic arithmetic: addition, subtraction, multiplication, division
• Trigonometric functions: sin, cos, tan, and their inverses
• Logarithmic functions: log (base 10) and ln (natural log)
• Power and root functions: squares, cubes, square roots, arbitrary powers
• Mathematical constants: π (pi) and e (Euler's number)
• Memory functions: MC, MR, M+, M−, MS for storing values
• Calculation history: review and reuse previous calculations
• Angle mode toggle: switch between degrees and radians
• Keyboard support: use your keyboard for faster input
• Factorial, absolute value, inverse, and percentage calculations

How to Use

1. Click buttons or use your keyboard to enter numbers and operators
2. Use the DEG/RAD toggle to switch between degree and radian mode for trig functions
3. Press scientific function buttons (sin, cos, log, etc.) before entering a number
4. Use memory buttons (MC, MR, M+, M−) to store and recall values
5. View your calculation history on the right panel and click any entry to reuse it

Common Use Cases

• Engineering calculations and physics problem solving
• Mathematics homework and exam preparation
• Financial and statistical analysis
• Programming and computer science calculations
• General scientific and research computations