{"id":660,"date":"2025-12-29T14:39:00","date_gmt":"2025-12-29T14:39:00","guid":{"rendered":"https:\/\/urff.app\/?p=660"},"modified":"2026-01-31T08:45:29","modified_gmt":"2026-01-31T08:45:29","slug":"rechenfeld-webapp","status":"publish","type":"post","link":"https:\/\/urff.app\/en\/rechenfeld-webapp\/","title":{"rendered":"Computing field as a web app"},"content":{"rendered":"

Today I experimented a bit with the Gemini CLI and the relatively new Gemini 3 Pro model, as well as with Claude Code and Opus 4.5. The task was: to create a web version of my iOS app Rechenfeld (with access to my app's code).<\/p>\n\n\n\n

After about an hour of back and forth \u2013 with me refining, correcting, and adding to the design \u2013 I ended up with a surprisingly well-functioning web app. It's obviously much more streamlined than the native app, but the basic principle of the computational framework remains recognizable, and it runs stably in the browser. It's truly astonishing what can now be achieved with such AI models.<\/p>\n\n\n\n

Since it would be a shame to keep this result only locally, I'm making the web version available here for you to try out:<\/p>\n\n\n\n

www.lernsoftware-mathematik.de\/rechenfeld<\/a><\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

I also have one right away. experimental AI learning companion<\/a> It includes built-in support based on Elevenlabs Agents, which can help with any questions. Feel free to try it out.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Similarly, a stripped-down web version of my soon-to-be-released version of the number line app has also been created, which is nevertheless quite usable:
https:\/\/lernsoftware-mathematik.de\/zahlenstrahl\/<\/a><\/p>\n\n\n\n

\"\"<\/a><\/figure>","protected":false},"excerpt":{"rendered":"

Ich habe heute ein wenig mit dem Gemini CLI und dem noch recht neuen Modell Gemini 3 Pro und auch mit Claude Code und Opus 4.5 experimentiert. Die Aufgabenstellung war: Ausgehend von meiner iOS-App Rechenfeld (mit Zugriff auf meinen Code der App) sollte eine Webversion entstehen. Nach ungef\u00e4hr einer Stunde Hin und Her \u2013 mit […]<\/p>\n","protected":false},"author":1,"featured_media":665,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/posts\/660","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/comments?post=660"}],"version-history":[{"count":14,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/posts\/660\/revisions"}],"predecessor-version":[{"id":729,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/posts\/660\/revisions\/729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/media\/665"}],"wp:attachment":[{"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/media?parent=660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/categories?post=660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/urff.app\/en\/wp-json\/wp\/v2\/tags?post=660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}