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- Cryptarithmetic puzzle solver
This calculator is a solver of cryptarithmetic puzzles. Cryptarithmetic puzzle is a number puzzle in which a group of arithmetical operations has some or all of its digits replaced by letters or symbols, and where the original digits must be found. In such a puzzle, each letter represents a unique digit.

- Determinant of 3x3 matrices
This calculator calculates the determinant of 3x3 matrices

- Determinant of a matrix
This online calculator computes determinant of a matrix, using it's definition

- Evaluating expressions
This online calculator substitutes a specific value for each variable, and performs the operations, evaluating the given expression.

- Extended Euclidean algorithm
This calculator implements Extended Euclidean algorithm, which computes, besides the greatest common divisor of integers a and b, the coefficients of Bézout's identity

- Fixed-point iteration method
This online calculator computes fixed points of iterated functions using fixed-point iteration method (method of successive approximations)

- Function approximation with regression analysis
This online calculator uses several simple regression models for approximation of unknown function given by set of data points.

- Gaussian elimination
The calculator solves the systems of linear equations using row reduction (Gaussian elimination) algorithm. The calculator produces step by step solution description.

- Hyperbolic functions
Calculation of hyperbolic functions

- Incircle of a triangle
This online calculator determines the radius and area of the incircle of a triangle given the three sides

- Inverse Hyperbolic Functions
Calculation of inverse hyperbolic functions of given argument

- Inverse of a matrix
Calculating inverse matrices via adjugate matrix

- Least Common Denominator for several fractions
Least Common Denominator for several fractions

- Lengths of triangle sides given one side and two angles
This online calculator determines lengths of triangle sides given one side and two angles

- Math equation simplification
Simplifies math equation with single variable (x). In eqation you may also use integer and fractional numerical constants arithmetic operations, trigonometric and hyperbolic functions.

- Math equation syntax
Math equation samples.

- Math worksheets generator for elementary school
Random worksheets, which are generated automatically from user parameters.

- Matrix Multiplication
Matrix Multiplication

- Matrix Rank
This online calculator determines the rank of a given matrix

- Matrix Transpose
Matrix Transpose