Linear Algebra: Matrix Solver
Step-by-Step Matrix Calculator
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Free to download. Enter a matrix and get a teacher-style, step-by-step solution for determinants, inverses, linear systems, eigenvalues and more. Interface in Chinese.
Linear Algebra turns any matrix problem into a teacher-style, step-by-step solution: what each step does, why it works, plus the final answer, a back-substitution check and exam tips. Free to download – every tool works and final answers are always free.
Note: the app interface and step-by-step explanations are in Simplified Chinese. Matrices, formulas and answers are standard math notation.
39 SOLVER TOOLS
• Exam essentials one tap away: determinant, inverse matrix, systems of linear equations, rank, eigenvalues & eigenvectors, diagonalization, quadratic form to canonical form, reduced row echelon form (RREF).
• Organized by chapter: determinants & matrix operations, elementary row operations & rank, linear systems, vector sets, eigenvalues & quadratic forms, polynomials.
• Advanced matrix theory: Jordan normal form, singular value decomposition (SVD), LU decomposition, Smith normal form, full-rank factorization, Moore–Penrose pseudoinverse, least squares, matrix norms and more.
STEP-BY-STEP, LIKE A TEACHER
• Every elementary row operation comes with an explanation, not just a wall of matrices.
• Linear systems get the complete general solution (particular solution + basis of the null space); eigenvalue problems list all eigenvectors; diagonalization gives P and Λ.
• The answer card sits on top, with automatic back-substitution checks and notes on common exam points and pitfalls.
STUDY CARDS
39 topics organized as key formulas → solving method → worked example → typical exam questions → common mistakes, each tagged by how often it appears on exams. Jump from any card straight into the solver to try a problem.
FREE AND FULL VERSION
• Free: all tools, final answers always free, 3 full step-by-step solutions per day.
• Full version (one-time purchase, not a subscription): unlimited access to every step and explanation, available on all your devices signed in with the same Apple ID, with Restore Purchases.
RUNS ON YOUR DEVICE
Problems are solved locally on your iPhone. Nothing is uploaded, and it works offline.
PRIVACY & SUPPORT
Privacy policy, FAQ and contact email are on the Support URL page below.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Added an English App Store page.
• Bug fixes and improvements.
The developer, 光浩 李, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 光浩 李
- Size
- 76.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Version $2.99
- Copyright
- © 2026 李光浩
