Scientific Calculator
Trigonometry
Calculate sin, cos, tan and their inverses
Logarithms & Powers
Calculate logarithms, exponents, and roots
Power / Root
Calculate x raised to power y, or yth root of x
Formula
sin²θ + cos²θ = 1 | logₐ(xy) = logₐx + logₐy | aⁿ × aᵐ = aⁿ⁺ᵐ
Frequently Asked Questions
What is a natural logarithm?
The natural logarithm (ln) uses base e ≈ 2.71828. ln(x) asks: 'e raised to what power equals x?' For example, ln(e) = 1, ln(1) = 0, ln(e²) = 2.
How do I convert degrees to radians?
Multiply degrees by π/180. For example: 90° = 90 × π/180 = π/2 ≈ 1.5708 radians. To convert back: multiply radians by 180/π.
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