iSolveModel vs Archie

Looking for a mathematical model solver running on your iPad/iPhone/iPod Touch? This is iSolveModel, an easy-to-use linear programming optimizer running on iPad as well as on iPhone and using the simplex algorithm method with pivot as the main solver engine as well as an integrated MIP solver for 0-1 variables and integer numbers. The purpose of this application is to provide a linear programming solver for the iPad/iPhone/iPod Touch community as well as for students and teachers, particularly for those in Operations Research / Operations Management / Industrial Engineering or related courses (college/undergraduate students). Features: - Number of decision variables and constraints only limited by the available memory of the device - Sensitivity analysis reports on variable coefficients and right-hand side when solving pure linear models - Documents can be transferred via iTunes File Sharing - Mathematical models and solutions can be sent by email - Model documents are text files, no proprietary format - Solution documents as HTML - Supports all device orientations Benefits: - Affordable - Easy-to-use modeling, models are like the ones in textbooks - Fast learning curve

Point your camera at any building and know what you're looking at. Archie identifies the architectural style of any building from a photo, then teaches you why. Snap a facade and get the style, the era, the visible features that give it away, and the story behind it. It's like having an architecture professor in your pocket. HOW IT WORKS • Snap a building (or import a photo from your library) • Archie's AI matches it against 146 architectural styles, from Gothic to Googie, Brutalism to Beaux-Arts, Brooklyn brownstones to Czech Cubism • See the features that signal the style (pointed arches, corbels, tracery) ringed on your photo one at a time and explained in plain language • Archie looks for the exact building in a database of 1,755,352 buildings, then on the web, and names it only when it can check the match • Named buildings open with their own history and their architect's story • Still curious? Tap a suggested question about the building, its style, or its architect • Every result includes a note about the exact building in your photo EXPLORE YOUR NEIGHBORHOOD The Map puts 5,700+ noteworthy buildings at your feet across 135 U.S. cities: famous landmarks and hidden gems, each with photos and the story of why it matters. See what's near you, filter for landmarks or hidden gems, walk over, and photograph a mapped building to collect it. More cities on the way. LISTEN AS YOU LOOK Every result comes with a spoken story in chapters, from the building's history to its architect's. Play it all or jump to a chapter, and it keeps playing with your screen locked. Every mapped building has its story too. It's a walking tour that starts wherever you're standing. BUILD YOUR LIFELIST Every style you identify unlocks in your LifeList: a field guide of all 146 styles to collect, each with its own drawing and real-world examples from around the globe, plus 50 famous architects to spot. Spotting styles becomes a game you play with every walk. YOUR PERSONAL LIBRARY Every save keeps the photo and its full analysis, readable offline. Browse by month, style, architect or city, or search as you type. Vacation buildings, hometown gems: your record of everything you've learned. MADE FOR EXPLORERS • Works worldwide, on anything from cathedrals to bungalows • Offline queue: snap now, analyze when you're back online • City map packs work offline once downloaded • Share cards for your best finds, sized for Instagram Stories and posts • Optional account: sign in with Apple, Google, or your email to back up your Library and LifeList across your iPhones. Identifying needs no account. No ads. PRIVACY FIRST Identifying a building needs no account. Photos are analyzed in the cloud and aren't kept on Archie's servers unless you save one to your account or report a wrong answer. If you allow location, your position and the direction you're facing go with the photo to work out which building it is, and aren't stored apart from those saves and reports. Sign in only if you want your saves backed up; they're stored for you alone until you delete them. With an account we may email you now and then about new features or research; you choose when you sign up and can turn it off in Settings. No ads in the app and no tracking across other apps: Archie never touches your advertising identifier. FREE & PREMIUM Your first 3 identifications are free, no strings. Archie Unlimited removes the limit and unlocks every place on the map, as a yearly plan that starts with a 7-day free trial or a one-time lifetime unlock. The yearly plan auto-renews until cancelled in your App Store settings; cancel at least 24 hours before the trial ends and you won't be charged. Your Library and LifeList stay fully readable without a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thearchieapp.com/privacy/