Linear Algebra World vs MathWard

Linear Algebra World (LAW) presents linear algebra in a way that is accessible yet rigorous. It is designed for students of engineering, mathematics, data science and related fields, and may also serve as a visual presentation tool for instructors. The app combines three roles: • matrix calculator • interactive algorithm step visualizer • carefully designed learning pathway through linear algebra Our goal is to present linear algebra as a coherent system built on a small set of axioms. Definitions are separated from consequences, logical dependencies are made explicit, and notation is kept minimal to reduce cognitive load. Visual tools are used extensively—even for abstract topics such as the four fundamental subspaces—so that geometric intuition and algebraic reasoning reinforce one another. The curriculum begins with vectors as coordinates and matrices as collections of vectors, and currently covers topics through QR factorization. Upcoming additions include OLS, eigendecomposition, SVD, and PCA. This app builds on our earlier Matrix Solver Step by Step, a highly rated matrix computation app used by students for several years. LAW adds a structured curriculum along with LaTeX import and export. LAW is designed for serious learners who want to understand the structure behind the computations. For quick step-by-step matrix calculations, Matrix Solver Step by Step may be the more direct tool. Your constructive feedback is essential to the continued refinement of the app.

MathWard makes math practice something kids actually want to do. Built for students in grades 1-8, MathWard generates personalized practice sheets across 8 core math topics — then tracks progress, celebrates wins, and adapts to what each student needs most. PRACTICE THAT ADAPTS TO YOUR CHILD MathWard's Smart Practice feature analyzes your child's history and automatically recommends the topic and difficulty level they should work on next. No more guessing what to practice — the app figures it out. Choose from 8 math topics: - Addition & Subtraction - Multiplication & Division - Fractions - Geometry - Algebra - Word Problems Three difficulty levels — Easy, Medium, and Hard — keep the challenge appropriate as skills grow. BUILT FOR HOW KIDS ACTUALLY LEARN Every practice sheet uses a clean, distraction-free interface with a custom number keyboard designed for math — including a fraction key and dollar sign for word problems. Stuck on a problem? The built-in Concept Explainer breaks down any topic in plain language, matched to your child's grade level. AI-powered hints are available for extra support when needed. TRACK PROGRESS AND CELEBRATE WINS - Earn points for every correct answer - Level up as skills improve - Maintain daily practice streaks - Unlock 8 achievement badges - Full analytics show accuracy trends by topic Parents can see exactly which topics need more attention and which are mastered. FREE TO START The free tier includes 3 practice sheets per day with up to 10 problems each. Upgrade to Premium for unlimited practice, AI-powered hints, concept explanations, and up to 20 problems per sheet. Try Premium free for 7 days. No charge until the trial ends — cancel anytime. PRIVACY FIRST MathWard does not collect personal data, show ads, or require an account. Everything is stored on your device. Safe for kids of all ages. Whether your child needs extra homework help, wants to get ahead, or just loves a challenge, MathWard meets them where they are — and helps them grow. EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/