MatrixAnalysis
Éducation
Gratuit · Conçue pour iPad. Non validée pour macOS.
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.
Notes et avis
- Cette app n’a pas reçu suffisamment de notes ou d’avis pour en proposer un aperçu.
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.
Le développeur hirenkumar patel a indiqué que les pratiques de l’app en matière de confidentialité peuvent inclure le traitement des données tel que décrit ci‑dessous. Pour en savoir plus, consultez la politique de confidentialité du développeur .
Données non collectées
Le développeur ne collecte aucune donnée avec cette app.
Accessibilité
Le développeur n’a pas encore indiqué quelles fonctionnalités d’accessibilité sont prises en charge par cette app. En savoir plus
Informations
- Fournisseur
- hirenkumar patel
- Taille
- 54,2 Mo
- Catégorie
- Éducation
- Compatibilité
Nécessite iOS 15.0 ou version ultérieure.
- iPhone
Nécessite iOS 15.0 ou version ultérieure. - iPad
Nécessite iPadOS 15.0 ou version ultérieure. - iPod touch
Nécessite iOS 15.0 ou version ultérieure. - Mac
Nécessite macOS 12.0 ou une version ultérieure et un Mac doté d’une puce Apple M1 ou une version ultérieure. - Apple Vision
Nécessite visionOS 1.0 ou version ultérieure.
- iPhone
- Âge
4+
- 4+
- Copyright
- © 2014 Hirenkumar Patel