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Free scientific calculator

Make sense of the numbers.

Type an expression or try an example. Calculate with fractions, trig, complex numbers, matrices, and statistics. Switch to Graph to see a function take shape.

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Calculator mode
Angle mode
Angles in radians · Enter to calculate0/2,000
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FractionsUnitsMatricesStatistics

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Syntax & precision
Numbers
Floating point. Use bignumber("0.1") for 64-digit decimals.
Fractions
fraction(1, 3) keeps rational values.
Matrices
[1, 2; 3, 4] — a semicolon starts a row.
Statistics
std uses sample standard deviation.
Algebra
Simplification and derivatives use RAD. Check the original domain. No general equation solver or integrals.
Limits
2,000 characters per expression; matrices up to 16 × 16.
History (0)
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Choose DEG for degrees or RAD for radians. Graphs show a sampled approximation of one function at a time.

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Another small thing off your list.