Site Map
All 11 calculators, 6 guides, and 12 supporting pages — organized by category.
Calculators (11)
RREF Calculator (Gauss-Jordan)
Reduced row echelon form with step-by-step Gauss-Jordan elimination. Exact fractions.
Matrix Inverse Calculator
Compute A⁻¹ by augmenting with the identity matrix and applying Gauss-Jordan.
Determinant Calculator
Full cofactor expansion for 2×2 to 5×5 matrices. Exact rational results.
Gauss-Jordan Elimination Calculator
Classic Gauss-Jordan with augmented matrix support and every row operation named.
Matrix Multiply Calculator
Multiply two matrices with entry-by-entry dot product steps shown.
Matrix Transpose Calculator
Flip rows and columns. Displays original and transposed matrices side by side.
Cross Product Calculator
3D vector cross product with determinant formula and geometric interpretation.
Dot Product Calculator
Dot product, angle between vectors, projection, and orthogonality check.
Simplify Radicals Calculator
Reduce square roots to simplest radical form via prime factorization.
Eigenvalues Calculator
Characteristic polynomial and eigenvalues for 2×2 and 3×3 matrices.
Quadratic Formula Calculator
Solve ax² + bx + c = 0 with exact radical answers.
Guides (6)
Linear Algebra Basics
Vectors, matrices, linear systems, and RREF — the core concepts explained.
Solving Linear Systems
Methods for solving Ax = b: substitution, elimination, and RREF.
Matrix Operations Cheat Sheet
Quick reference for addition, multiplication, transpose, inverse, and determinants.
RREF Step-by-Step Tutorial
Three complete worked examples: 2×2, 3×3, and 3×4 augmented matrix.
Gauss-Jordan vs. Gaussian Elimination
Comparing the two methods: when to use each and what makes them different.
Linear Algebra for Students
Study guide for the linear algebra course: what to know and how to prepare.
Trust & About (7)
About
Our mission, team, and technical architecture.
Editorial Policy
How we write, review, and correct content.
Methodology
How the calculators work: BigInt arithmetic and algorithm details.
Sources
Academic references: Strang, Lay, MIT 18.06.
Contact
Report bugs, corrections, or partnership inquiries.
Changelog
Dated record of updates, new features, and fixes.
FAQ
Top 30 questions about RREF, matrices, and this calculator.
Legal (5)
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