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Scientific Calculator
A complete scientific calculator with sin, cos, tan, log, ln, powers, factorial, and calculation history.
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Frequently Asked Questions
How do I calculate sin/cos/tan on a scientific calculator?
This calculator uses radians by default (standard math convention). For degrees: convert first by multiplying by π/180. Example: sin(45°) = sin(45 × π/180) = sin(0.7854) ≈ 0.7071. Many scientific calculators have a DEG/RAD mode switch.
What is the order of operations in this calculator?
Standard mathematical order: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction (PEMDAS). Always use parentheses to make complex expressions unambiguous. Example: 2+3×4 = 14 (not 20), but (2+3)×4 = 20.