Vedic Multiplication vs Interactive Physics Simulator

Vertically and Crosswise Multiplication helps students learn and practice a compact visual multiplication method step by step. The method is commonly associated with Shri Bharti Krishna Tirthaji’s book “Vedic Mathematics,” published in 1965. In this method, numbers are multiplied using a sequence of vertical and crosswise multiplications. Two-digit multiplication can be completed in three main steps: vertical, crosswise, and vertical. Three-digit multiplication uses five main steps: vertical, crosswise, vertical, crosswise, and vertical. The method has similarities with lattice and grid multiplication. With practice, students may be able to do more of the steps mentally and solve multiplication problems without writing every step down. Features: * Step-by-step vertically and crosswise multiplication practice * Multiplicand can have up to 3 digits * Multiplier can have up to 3 digits * Students can enter their own problems * Current operation for each column can be hidden * Operands for the current operation can be highlighted * Three visual themes * Native interfaces for iPhone and iPad Other iDevBooks Math Apps: Other iDevBooks math apps include Visual Multiplication Table, Decimal Rounding, Whole Number Rounding, Column Subtraction, Column Addition, Long Division, Long Multiplication, Lattice Multiplication, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, and more. Feedback: New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback. Privacy: This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.

Physics Simulator transforms your iPad and iPhone into an interactive physics laboratory with 38 modules and over 100 real-time simulations. WHAT'S NEW IN VERSION 3.3 • New Animations: Radiation Therapy, Laser Physics, Biophysics (Ion Flow) • Enhanced visualizations: Relativity Time Dilation, Ultrasound Charts • Added support for 2 new languages: Russian and Portuguese (Total 12) • Performance optimization: ~15% faster rendering • 100+ interactive simulations in 38 physics modules COMPREHENSIVE PHYSICS COVERAGE Classical Physics: Explore mechanics with projectile motion, pendulums, and spring oscillators. Study thermodynamics, wave phenomena, and oscillations with interactive visualizations. Electromagnetism & Optics: Visualize electric fields, capacitors, and circuits. Experiment with lenses, telescopes, and diffraction patterns. Modern Physics: Discover the Bohr atomic model, quantum tunneling, and radioactive decay. View 3D hydrogen orbital animations and explore electron orbital shapes (s, p, d). Quantum Mechanics: Visualize electron orbitals in 3D with color-coded wave function phases. Choose between s, p, and d orbitals with all subtypes (px, py, pz, dz², dxz, dyz, dx²-y², dxy). Medical Physics: Professional-grade simulations for MRI (Bloch equations, T1/T2 relaxation, k-space), CT (Radon transform, filtered backprojection), ultrasound with Doppler imaging, Radiation Therapy (Dose Distribution), and nuclear medicine (SPECT, PET). Emerging Fields: Biophysics, Plasma Physics, Geophysics, Particle Physics, Laser Physics, Nanotechnology, Superconductivity, Cosmology, and Gravitational Waves. Advanced Topics: Relativity, chaos theory with Lorenz attractors, celestial mechanics with eclipse simulations, fluid dynamics, acoustics, and astrophysics including gravitational lensing. KEY FEATURES • 100+ interactive simulations with real-time parameter control • Adjustable sliders with immediate visual feedback • Formulas and numerical results displayed alongside animations • Quiz mode to test your understanding • Universal app optimized for iPhone and iPad • Support for 12 languages (English, German, French, Spanish, Italian, Chinese, Japanese, Korean, Hindi, Indonesian, Portuguese, Russian) PERFECT FOR • University physics courses • Medical physics education • High school physics classes • Self-study and exam preparation • Teaching demonstrations All simulations are designed for educational purposes and provide clear, scientifically accurate visualizations of physical phenomena.