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Linear algebra

Matrices and linear systems: Gaussian elimination, determinants, rank and inverses. Fixed steps you can practise row by row.

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Calculators with workings

Gaussian elimination calculator

Practice exams

Linear algebra practice examLinear algebra practice exam: solving systems with Gaussian elimination, determinants, rank, inverse matrices and solvability. With worked answers, online or as PDF.

Matrices and linear systems

Gaussian eliminationDeterminantRank of a matrixInverse matrixSolvability of linear systems

Other subjects

AccountingEconomicsCalculusStatisticsGeneral chemistryOrganic chemistry