MatrixAnalysis
教育
免费 · 专为 iPad 设计。未针对 macOS 验证。
Matrix Analysis computes exactly.
Most calculators work in floating point, so the determinant of a whole-number matrix comes back as 23.000000000000004 and an inverse arrives full of rounding noise. This one uses exact fraction arithmetic throughout. Integer matrices give integer answers. Inverses come back as fractions like -3/7, not 0.428571...
WHAT IT DOES
• Determinant, exactly, for matrices up to 20x20
• Inverse and adjugate, as exact fractions
• Minors and cofactors
• Rank, nullity, trace, transpose and reduced row echelon form
• Matrix multiplication
• Eigenvalues and eigenvectors, with the characteristic polynomial
SOLVING SYSTEMS
Type equations the way you write them:
2x + 3y - z = 5
x - y + 2z = 3
3x + y + z = 10
Matrix Analysis builds the system and solves it, answering with your own variable names. It handles every case, not just the tidy one: a unique solution, infinitely many (shown as a particular solution plus a basis of the null space), or none at all — where it tells you the system is inconsistent and why. More unknowns than equations, or more equations than unknowns, both work.
EIGENVALUES DONE HONESTLY
The characteristic polynomial is computed exactly. Its roots are found numerically, then each one is offered a nearby exact value — so an integer matrix with integer eigenvalues gives exact answers and clean whole-number eigenvectors, while irrational and complex eigenvalues are shown as decimals and clearly marked approximate. You always know which you are looking at. Algebraic and geometric multiplicities are reported, and defective matrices are flagged as such.
INPUT THAT FITS HOW YOU WORK
• Whole numbers, decimals and fractions such as 3/4
• Paste whole rows at once
• Results as exact fractions or rounded decimals, at a tap
• Arrow keys move between cells
• Share any result to Notes, Mail or Messages
NO ACCOUNT, NO NETWORK, NO TRACKING
Matrix Analysis does not connect to the internet. There is no sign-in, no analytics and no data collection of any kind. Everything you type stays on your device, and every calculation runs on it. It works in airplane mode because it has never needed anything else.
Built for students and engineers who need the answer to be right.
评分及评论
- 此 App 尚未收到足够的评分或评论，无法显示整体评分。
Matrix Analysis has been rebuilt from the ground up.
EXACT ARITHMETIC
Calculations now use exact fractions on arbitrary-precision integers instead of floating point. A whole-number matrix gives a whole-number determinant, and inverses come back as fractions rather than rounding noise.
MUCH LARGER MATRICES
Up to 20x20, raised from 6x6.
NEW IN THIS VERSION
- Eigenvalues and eigenvectors, with the exact characteristic polynomial
- Type equations such as 2x + 3y - z = 5 and solve them directly, answered with your own variable names
- Matrix multiplication
- Ax = b, including the infinitely-many-solutions and inconsistent cases
- Rank, nullity, trace, RREF, minors, cofactors and the adjugate
- Paste whole rows at once
- Switch between exact fractions and decimals at a tap
- Share any result to Notes, Mail or Messages
Works entirely offline. No account, no network access, no tracking.
开发者“hirenkumar patel”已表明该 App 的隐私规范可能包括下述数据处理方式。更多相关信息，请参阅 开发者隐私政策 。
未收集数据
开发者不会从此 App 中收集任何数据。
辅助功能
开发者尚未表明此 App 支持哪些辅助功能。 进一步了解
信息
- 提供者
- hirenkumar patel
- 大小
- 54.2 MB
- 类别
- 教育
- 兼容性
设备需装有 iOS 15.0 或更高版本。
- iPhone
设备需装有 iOS 15.0 或更高版本。 - iPad
设备需装有 iPadOS 15.0 或更高版本。 - iPod touch
设备需装有 iOS 15.0 或更高版本。 - Mac
需要 macOS 12.0 或更高版本以及装有 Apple M1 或更高版本芯片的 Mac。 - Apple Vision
设备需装有 visionOS 1.0 或更高版本。
- iPhone
- 年龄分级
4+
- 4+
- 版权
- © 2014 Hirenkumar Patel