Crys vs QM Simulator

Crys-CAST brings crystal and molecular structure viewing, geometry analysis, and presentation tools to iPhone and iPad. OPEN AND EXPLORE Open CIF, XYZ, PDB, MOL, SDF, MOL2, and RES files from Files or other apps. Explore asymmetric units, unit cells, and supercells with ball-and-stick, Spacefill, coordination polyhedra, and thermal ellipsoids when suitable displacement data is available. Rotate, zoom, and view structures along crystallographic directions. MEASURE AND ANALYZE Inspect bond lengths, bond angles, and geometric hydrogen-bond candidates, grouped by type with clear symmetry details. Combine selected length, angle, and hydrogen-bond labels directly on the structure. Distinguish coordinate-calculated values from matching CIF-reported geometry, and export compact bond-length and bond-angle tables as TXT or Excel-compatible CSV. Explore simulated powder X-ray diffraction patterns, BFDH morphology, and geometric pore analysis. Display pore space alone or together with the crystal structure. BUILD YOUR COLLECTION Organize structures in My Database. Add files from History or import structure files and ZIP, RAR, or 7z archives into a chosen collection. Name entries, save viewing states, and export collections for reuse. CREATE PRESENTATION MATERIALS Save structure images and record GIF or MP4 animations with resolution and frame-rate presets and custom duration. Use automatic rotation or adjust the view while recording. Animation exports contain the structure viewer without interface controls or sound. MAKE THE VIEW YOUR OWN Use a consistent interface on iPhone and iPad, choose light or dark appearance, and customize backgrounds, unit-cell lines, axes, and scale bars. SCIENTIFIC SCOPE Calculated geometry, hydrogen-bond candidates, pore results, and other analyses depend on the input data and selected settings. They support visualization and interpretation but do not replace structure refinement or experimental validation. Missing hydrogen positions are not inferred. Actual recording frame rate depends on device performance and structure complexity.

QM Simulator is a hands-on quantum physics atlas: 54 interactive simulation modules spanning the full arc from quantum foundations to quantum information, paired with 47 bilingual articles. Every computation and rendering happens on your device — no network, no sign-up. WHAT YOU CAN DO • Play with parameters: adjust slit spacing, raise a potential barrier, tune cavity coupling — every chart recomputes in real time. • Learn by level: Basics → Advanced (perturbation, degeneracy, radiation) → Topics (Bell inequalities, quantum error correction, Grover's algorithm), from high-school extension to university QM. • Read linked notes: each article is tied to its simulation, with formulas and figures side by side — switch between Chinese and English anytime. • Explore freely: Bloch sphere, hydrogen wavefunctions, blackbody radiation, Compton scattering, Kronig–Penney, BB84 quantum key distribution — from Planck's 1900 hypothesis to today's quantum computing. WHO IT'S FOR • Physics students: turn textbook formulas into images you can see and manipulate. • Educators & researchers: validate intuitions and demonstrate in class. • The curious: no derivation skills needed — dial the parameters and build quantum intuition. HIGHLIGHTS • 54 simulation modules, all driven by real physics computation (not pre-baked animations). • 47 in-depth articles, fully bilingual, with figures and code. • Fully offline: no ads, no purchases, no tracking, no account required. • Chinese & English UI, follows system language. Educational use: QM Simulator works as a lecture-demonstration companion for quantum mechanics courses.