Matrix Calculator is a free online tool that can perform various operations on matrices, such as finding the determinant, inverse, transpose, rank, power, sum, multiplication, and decomposition of matrices.

A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. Matrices are often used to represent linear transformations, which are techniques for changing one set of data into another. Matrices can also be used to solve systems of linear equations.

This matrix calculator online tool could help you simplify and manipulate matrices with ease. You can enter matrices using decimal fractions and you can copy and paste matrices from the results or from other sources.

Distance calculator could calculate the distance between two points in the rectangular coordinate system, supports two-dimensional coordinates and three-dimensional coordinates.

Base Converter supports arbitrary conversions between 2 and 36 bases, and also supports floating-point types conversion.

Twin Calculators (Twofold Calculators), which combines two calculators into one, and the calculation result can be copied and pasted between the two calculators with one click.

Perimeter Calculator supports perimeter calculations for common geometric figures such as Circular, Sector, Ellipse, Triangle, Square, Rectangle, and Parallelogram. You can use different formulas and methods to calculate the perimeter of these geometric figures depending on the shape and the given information.