About This Tool
What is Calculator?
A tool for evaluating math expressions directly. Supports arithmetic operations plus trigonometric functions, logarithms, exponents, and mathematical constants (pi, e). Maintains a calculation history.
How to Use
- Enter a math expression (e.g., 2+3*4, sin(pi/2)).
- Press Enter to see the result.
- View previous calculations in the history.
- Click 'Clear History' to reset.
Key Features
- Arithmetic operations with parentheses
- Trigonometric functions (sin, cos, tan), logarithms (log, ln)
- Built-in math constants (pi, e)
- Calculation history retention
Tips
- Use * for multiplication, / for division, and ** for exponentiation.
- pi equals 3.14159..., e equals 2.71828... as mathematical constants.
- Use parentheses to explicitly set operation order in complex expressions.
Calculator
Evaluate math expressions with functions and constants
Frequently Asked Questions
Precisão de ponto flutuante?▼
0.1 + 0.2 ≠ 0.3 em ponto flutuante. Limitação do IEEE 754. Use bibliotecas de precisão para finanças.
Ordem das operações?▼
PEMDAS: Parênteses, Expoentes, Multiplicação/Divisão, Adição/Subtração. Da esquerda para direita.
Divisão por zero?▼
Matematicamente indefinido. Retorna Infinity ou erro dependendo da implementação.
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