Scientific math

Explore angles, powers, roots and the constants that connect them.

Explore trigonometric functions and the angle units behind the answer.

Find the principal angle for a sine, cosine or tangent ratio.

Ask what exponent turns a chosen base into your number.

Find the real square, cube or nth root of a number.

Raise a base to a positive, negative or fractional power.

Count ordered arrangements by multiplying consecutive whole numbers.

Express a numerator and denominator as a percentage and a decimal.

A small reference shelf for numbers that show up everywhere.

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A result is only the beginning.

Every calculator includes its formula, assumptions and worked steps. Start with the example, then try your own numbers.