Exact matrix mathematics. Step-by-step derivations.
A focused linear algebra utility for Android students and educators. Engineered around an exact Rational and BigInt arithmetic core that avoids floating-point approximations, providing clear step-by-step row operations, determinants, and worksheet exports.
MatrixLab
Matrix Mathematics & Worksheets
Inspect the Exact Arithmetic Engine
Experience the core solver logic: determinants via cofactor expansion, rank calculations, and exact rational inversions formatted with true mathematical brackets.
Exact Rational Engine Preview
BigInt arithmetic without floating-point inaccuracies
det(A) = 2(4·(-3) - 5·2) - (-1)(0·(-3) - 5·1) + 3(0·2 - 4·1) = 2(-22) + 1(-5) + 3(-4) = -44 - 5 - 12 = -57
Engineering linear algebra with exactness.
Explore genuine screenshots from MatrixLab’s Android laboratory build, demonstrating exact solvers, derivations, and practice modes.
Inverse, Determinants & Row Reductions
Solve 2×2, 3×3, and 4×4 matrices using exact rational arithmetic. Choose between the Adjoint Method and Row Transformation (Gauss-Jordan) without floating-point rounding errors.
Every Intermediate Step & Fraction View
Inspect detailed step-by-step derivations for cofactors, determinant expansions, and elementary row operations. Switch freely between exact fractional expressions and decimal displays.
Timed Drills with Direct Matrix Keypad
Master linear algebra through direct on-screen matrix keypad entry or timed multiple-choice drills. Retain mistake ledgers to target specific operational weaknesses.
Printable Matrix Problem Sets with Solutions
Generate custom printable PDF worksheets with matrix addition, subtraction, multiplication, and inverses. Includes matching step-by-step answer keys for teaching and self-study.
Designed for mathematical clarity and pedagogy.
Exact Rational Arithmetic
Powered by arbitrary-precision BigInt and rational fraction types. Avoids IEEE 754 floating-point rounding anomalies (e.g. 0.30000000000000004) so determinants and inverses remain 100% mathematically exact.
Step-by-Step Understanding
Inspect comprehensive derivations for row reductions (Gaussian and Gauss-Jordan), cofactor expansions, adjoints, and matrix inverses rather than opaque answers.
Worksheets & Practice
Interactive drills with targeted mistake review sessions, paired with clean printable PDF matrix worksheets with matching answer keys for academic study.
Laboratory Roadmap & Policy
MatrixLab is developed by Isa Shaikh at Elyaro Labs. All matrix entries and worksheet data remain entirely on your local device.