Terravaria vs Or Simplex Step

Identify animals in seconds: photograph one, and our animal identifier names the species, from sparrow to ibex. Every find joins your collection, your world map and your team for the 3-on-3 battle. Welcome to Professor Terra's Research Guild. The wildlife out there is vast, and much of it has never been documented. That's exactly why the Professor needs you. From today on, you're an explorer of his guild. YOUR MISSION AS AN EXPLORER • Spot an animal and photograph it with the app • Our animal scanner helps Professor Terra identify animals, even for rare finds • Your card appears with stats, rarity and habitat • Be the very first to find a species and your card becomes a shimmering holo card, and you enter the guild's Hall of Fame YOUR WORLD MAP • Every find lands automatically on your personal world map • See at a glance where you spotted which animal • Open your friends' world maps and compare your finds • With Explorer Diary (subscription), your whole world map is unlocked, no limits COLLECT & UPGRADE • Cards across 9 habitats, from meadow to rainforest • Duplicate finds level up your card • A free pack with a new card every day • Card packs with transparent drop rates, you ALWAYS see the odds before opening BATTLE 3-ON-3 • Build your team of three cards • Tactical battles with abilities, types and potions • Fair: stats come from the animals' real biology PLAY WITH FRIENDS • Find and add friends and browse their collections • Three games against friends: Guess the image, Quiz duel and Memory • Invite a friend: once your friend photographs their first animal, you both get 30 days of Explorer Diary for free THE WEEKLY LEAGUE • Every week is a research week: your group compares its finds • Score points through discoveries and victories • The top three advance, from Firefly to Wolf league • Discoveries leaderboard: who finds the most animals? • Your explorer rank grows permanently and unlocks new abilities MADE FOR THE OUTDOORS Terravaria rewards real observations. Only photos you took yourself count. Downloaded or re-photographed images are caught by the authenticity check. Terravaria is free to play. In-app purchases are optional, and you always see the odds beforehand. Terravaria is available in German, English, French and Spanish. Terms: https://terravaria.ch/en/terms.html Privacy: https://terravaria.ch/en/privacy.html

OR Simplex Step-by-Step is a comprehensive Operations Research solver for students. Built and validated with professors at Kyiv Polytechnic University, it is used by students worldwide. EVERY METHOD YOU NEED - Simplex method: classical, Two-Phase, and Big-M - Integer programming: Branch and Bound - 2D graphical method: feasible region, objective line, and optimum - 3D polytope visualization for 3-variable linear programming: rotate and explore the feasible region - Sensitivity and post-optimal analysis: ranges, shadow prices, and RHS intervals - Transportation problem: North-West Corner, Least-Cost, and Vogel's Approximation (VAM) - MODI / U-V method: optimality test and refinement - Assignment problem: Hungarian algorithm - Job sequencing: 2, 3, and N machines using Johnson's algorithm WHY STUDENTS CHOOSE IT - Step-by-step explanations with every iteration described in plain language - Exact fraction arithmetic to avoid rounding errors - Dedicated math keyboard for fractions, signs, and decimals - Problem history to save, reopen, and edit past problems - 8 languages: English, Spanish, French, Portuguese, Russian, Ukrainian, Arabic, and Persian - No account required