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• Golden ratio

This calculator determines proportions according to golden ratio

• Inverse trigonometric functions

This calculator determines values of inverse trigonometric functions (arcsine, arccosine, arctangent, arccotangent, arcsecant, arccosecant) and outputs it with different measurement units (degrees, radians, minutes, etc)

• Levenshtein Distance

Online calculator for measuring Levenshtein distance between two words

• Logarithm

This online calculator produces the logarithm of a given number with a given base. It computes also the natural logarithm and the common logarithm (decimal logarithm).

• Luhn algorithm

Calculates digit sequence checksum using Luhn algorithm (mod 10), calculates validation digit (the digit to be appended to the digit sequence to make whole sequence checksum equal to zero).

• Math operations on degrees

This online calculator supports simple mathematical operations, addition/subtraction/multiplication/division, on degrees

• Mathematical calculator

Mathematical calculator is used for evaluation math expressions with arithmetic operations (+-/*^) and functions: sqrt - square root, exp - exponential function, lb - binary logarithm, lg - decimal logarithm, ln - natural logarithm, sin - sine, cos - cosine, tan - tangent, cot - cotangent, sec - secant, csc - cosecant, arcsin - arcsine, arccos - arccosine, arctan - arctangent, arccot - arccotangent, arcsec - arcsecant, arccosec - arccosecant and others

• Polygon area

Online calculator which calculates area of a polygon given lengths of polygon sides and diagonals which split polygon to nonoverlapping triangles

• Proportion

This online calculator finds unknown member of proportion. Created by user's request

• Pythagorean theorem calculator

Calculates the side length of a right triangle from two other sides using Pythagorean theorem. Created by user's request

• Root and power

This calculator outputs desired root and power of entered number

• Second, third and other derivatives

Evaluates first, second third and other derivatives of a single argument function

• Side length of a triangle

This calculator computes side length of a triangle given two sides and angle between them (law of cosines)

• Simple math in any numeral system

This online calculator supports simple math (addition, subtraction, division, multiplication and power) for numbers expressed in any numeral system - binary, octal, hexadecimal, from the base 2 to base 36

• Solving limit problems using L'Hospital's Rule

Solving 0/0 and ∞/∞ limit problems using L'Hospital's Rule.

• The greatest common divisor and the least common multiple of two integers

This calculator finds the greatest common divisor (GCD) and the least common multiple (LCM) of two integers

• The greatest common divisor of two integers

This calculator determines the greatest common divisor of two integers using Euclidean algorithm

• Triangle angles for given triangle sides

This calculator computes triangle angles for given triangle sides using cosine law

• Values of one-variable function

This online calculator calculates values of one-variable function given function formula and set of variable values

• Volume of geometric shapes

Calculates volume of geometric shapes: cube, prism, pyramid, frustum, cone, cylinder, sphere, ellipsoid.