Equations Matrix Calculator is a free Android application developed by ABAKAL.Cálculo.Estructura.Hidráulica.Hormigón. It falls under the category of Education & Reference. This app is designed to solve complex matrix problems and linear equation systems.

The app features a very intuitive editor that helps users easily add data to their matrix. It can resolve determinant, inverse, characteristic polynomial, eigenvalues, matrix diagonalisation, and equations. Users can solve the equations in roots (eigenvalues) that are real and complex.

For solving systems of equations, users must provide the matrix of independent terms. The app resolves the equations by two methods: multiplying by the inverse and reduction Gauss-Jordan. The latter method is unbundled, allowing users to check whether the system of linear equations is compatible determined, indeterminate or incompatible.

It should be noted that the app requires permissions to save and read files in order to have persistent data and save the calculations. To learn more about the app and how to use it, users can visit the instructions link provided on the app's page.

Overall, Equations Matrix Calculator is a useful tool for anyone dealing with complex matrix problems and linear equation systems.