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Mathematics
Everyday arithmetic, percentages and equations.
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Arithmetic calculator
Add, subtract, multiply or divide two numbers.
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Fraction arithmetic
Add, subtract, multiply and divide ordinary fractions.
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Percentage change
Compare an old and a new value.
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Percentage of a number
Find any percentage of a number.
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Powers and roots
Calculate powers, square, cube and arbitrary roots.
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Proportion solver
Find one missing value in a : b = c : d.
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Quadratic equation solver
Solve ax² + bx + c = 0 over real or complex numbers.
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Trigonometry
Find sine, cosine and tangent of an angle.
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2D vector analysis
Magnitudes, dot and cross products and angle between vectors.
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2×2 linear system
Solve two linear equations using Cramer's rule.
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2×2 matrix
Determinant, trace, norm and inverse of a 2×2 matrix.
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Complex numbers
Add, subtract, multiply or divide complex numbers.
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Linear equation
Solve ax + b = 0.
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Logarithms
Calculate natural, decimal and arbitrary-base logarithms.
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Quadratic polynomial calculus
Evaluate a polynomial, its derivative and a definite integral.