Math Solver Pro vs ElePHPant

Math Solver Pro is a comprehensive tool designed for students, engineers, and anyone who works with math in their studies or profession. The app includes 100+ calculators and guides covering a wide range of mathematical topics. Each calculator includes a brief theoretical explanation and performs step-by-step calculations using the correct formulas — making it ideal for learning, checking homework, or quick reference on the go. Covered Topics: • Matrix operations • Determinants • Vector calculus • 2D and 3D analytic (Cartesian) geometry • 2D and 3D elementary geometry • Systems of linear equations • Algebra • Quadratic equations and more Key Features: • Over 100 calculators across major math fields • Step-by-step solutions with detailed explanations • Quick theory references for each task • Random number generator for creating practice problems • Multilingual support: English, French, German, Italian, Portuguese, Russian, Spanish, Ukrainian Whether you're preparing for exams or solving real-world engineering tasks, Math Task Solver makes it fast and easy. The application performs the following operations: • Matrix addition • Matrix subtraction • Matrix multiplication • Matrix multiplication by scalar • Matrix transpose • Matrix square • Determinant: Sarrus method • Determinant: Laplace method • Invertible matrix • Vector Length • Vector coordinates by two points • Vectors addition • Vectors subtraction • Scalar and vector multiplication • Scalar product of vectors • Cross product of vectors • Mixed 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 vecto • General equation of a straight line • Slope equation of a straight line • Line equation in segments • Polar parameters of the line • Relationship between line and point • Distance between two points • Dividing a segment in half • Dividing a segment in a given ratio • Triangle area • Condition under which three points lie on the same line • Condition of parallel lines • Two lines are perpendicular • Angle between two lines • Bunch of lines • Relationship between a line and a pair of points • Point to line distance • Equation of a plane • Condition for parallel planes • Condition for perpendicular planes • Angle between two planes • Segments on axes • Equation of a plane in segments • Relationship between a plane and a pair of points • Point to plane distance • Polar parameters of the plane • Normal Equation of a Plane • Reducing the plane equation to normal form • Equations of a line in space • Canonical equation of a straight line • Parametric equations of a straight line • Direction vectors • Angles between line and coordinate axes • Angle between two lines • Angle between line and plane • Condition of parallel line and plane • Condition of perpendicularity of a line and a plane • Triangle area • Median of triangle • Triangle height • Pythagorean theorem • Radius of a circle circumscribing a triangle • Radius of a circle inscribed in a triangle • Area of a parallelogram • Area of a rectangle • Square area • Trapezoid area • Rhombus area • Circle area • Sector area • Length of the arc of a circle • Parallelepiped volume • Cuboid volume • Cube volume • Pyramid surface area • Pyramid volume • Truncated pyramid volume • Cylinder lateral surface area • Cylinder total area • Cylinder volume • Cone lateral surface area • Cone total surface area • Cone volume • Sphere surface area • Sphere volume • Substitution method • Cramer's method • Invertible matrix method • Quadratic Equations • Biquadratic Equations • Arithmetic progression • Geometric progression • Greatest Common Divisor • Least Common Multiple The application is being actively developed and supplemented with new calculators. Keep for updates!

ElePHPant: Learn PHP Web Development ElePHPant is a structured learning app for PHP web development. From basic syntax to web applications, this app provides project-based learning for developers who want to build server-side skills. Learn to create dynamic websites, handle databases, and develop web applications through practical exercises—completely offline and ad-free. LEARNING CONTENT * 12 Project-Based Units from fundamentals to content management systems * 200 PHP Programming Challenges covering core concepts * 70+ Coding Exercises per unit with practical applications * PhP Cheatsheet: A compact reference guide for quick look-ups * PhP Flashcards: 1200 targeted flashcards to reinforce key concepts * Detailed Tutorial Guides for each project * Daily PHP Coding Challenges * Progress Tracking system * 12 interface themes * 15 interface languages including English, Spanish, French, German, Chinese, Japanese, and more * Full Offline Access * No Ads, no subscriptions FEATURES * Syntax-highlighted code examples * Step-by-step project instructions * Coding practice environments * Security-focused development guidance LEARNING PROJECTS 1. Personal Portfolio Website - PHP basics & file inclusion 2. Contact Form System - Form handling & email integration 3. To-Do List Application - Sessions & CRUD operations 4. User Registration & Login - Authentication & security 5. Blog Management System - Database operations & pagination 6. File Upload Gallery - File handling & image processing 7. Web Calculator - Input validation & error handling 8. Guest Book Application - Database interactions & display 9. Polling & Voting System - Statistics & data visualization 10. Content Management System - Dynamic routing & permissions 11. E-commerce Product Catalog - Search functionality & filtering 12. PHP Fundamentals Review - Advanced concepts consolidation SKILLS COVERED * PHP development environment setup and server configuration * Web application development with proper architecture * User authentication, session management, and security practices * Database operations using PDO and secure queries * Dynamic content management and e-commerce functionality * File uploads, image processing, and data validation SUITABLE FOR * Web development beginners * Frontend developers learning backend * Computer science students * Freelance web developers * Developers building dynamic web applications Learn PHP web development through structured projects designed for modern web development practices and secure coding standards.