Linear Algebra Pro vs Beautiful Trigonometry

Linear Algebra Pro is a powerful and easy-to-use tool for calculating matrices, determinants, and vector operations — perfect for students, engineers, and anyone who works with linear algebra in study or professional tasks. The app performs step-by-step calculations with detailed solutions using the correct formulas. You can work with matrices up to 5×5 and vectors in 2D or 3D. Each calculator includes a brief theoretical overview to help you understand the concept behind the operation. It also includes a random number generator to instantly create practice problems with random values. Available in 8 languages: English, French, German, Italian, Portuguese, Spanish, Russian, Ukrainian. Whether you're learning, teaching, or solving real-world problems, Linear Algebra Pro helps you get accurate results quickly and understand the math behind them. The application perform following operations with matrices: • Matrix addition • Matrix subtraction • Matrix scalar multiplication • Matrix square • Matrix multiplication • Matrix transposition Determinant calculations: • Calculation of the determinant using the Sarrus method • Calculation of the determinant using the Laplace method Vector operations: • Vector Length • Vector coordinates by two points • Vectors addition • Vectors subtraction • Scalar and vector multiplication • Scalar product of vectors • Cross product of vectors • Mixed (scalar) triple product • Angle between two vectors • Projection of a vector onto another vector • Direction cosines • Collinear vectors • Orthogonal vectors • Coplanar vectors • Area of triangle formed by vectors • Area of a parallelogram formed by vectors • Volume of pyramid formed by vectors • Volume of a parallelepiped formed by vectors Download now and simplify your linear algebra work!

Trigonometry doesn’t have to be confusing. When my daughter first met sine and cosine in school, she asked, “Why do we even need this?” We tried formulas, practice sheets, even flashcards — but it still felt like memorizing rules without meaning. So I built a way to make it visible. With sliders, color, and motion, she could see how angles and sides connect — how triangles breathe, how waves emerge, and how every formula has a shape behind it. That small experiment became Beautiful Trigonometry — an interactive app that turns math from abstract to intuitive. Instead of memorising, explore. Move a slider, rotate a triangle, or trace the unit circle — and suddenly, sine, cosine, and tangent make sense. You’ll discover how to: - Understand how angles and sides connect - See how triangles and graphs reflect each other - Build intuition with the unit circle - Learn faster using animations and instant feedback Free to explore: - Acute Angle Trigonometry: sine, cosine, and tangent made visual - Full Circle Functions: understand sine and cosine across 360° - Triangle Area: learn the sine area formula interactively - Law of Cosines: see it work step by step Upgrade to PRO and unlock: - Graphs of all trig functions: sine, cosine, tangent, cotangent, secant, cosecant - Trig Identities & Formulas: a complete reference Perfect for - Students who want trigonometry to finally click - Teachers and tutors explaining visually - Anyone who loves learning through discovery You won’t just study trigonometry — you’ll feel it click. Part of the Beautiful Math series. Learn visually. Understand deeply. Move ahead.