漸化式ガチャ

Name: 漸化式ガチャ
Price: 6.49 USD
Author: Akira Hiraoka

Android app by Akira Hiraoka. Education · Akira Hiraoka

Store rating: Unknown
Store rating count: Unknown
Download price: 6.49 USD
In-app purchases: Not listed in captured metadata
Version: 4.2
Listing last refreshed: 2026-09-11

Store description excerpt

The Recurrence Formula Gacha is a service released on the Oishii Mathematics website on July 21, 2020, that randomly presents three recurrence formula problems up to Mathematics II BC. This app inherits the functionality of the web version and is an enhanced app version. The app version has the following features in addition to the web version: 1. More problems than the web version, with a current total of 50,460 gacha combinations (compared to 18,620 in the web version). 2. Unlimited gacha spins, no time limit. 3. Advanced-only switch (press (3) to ensure an advanced level is drawn). 4. Additional information included (contains relevant information such as background knowledge and sources for the problem). 5. Built-in timer (measures up to 100 minutes after spinning the gacha, useful for time attack). 6. New problem identification function (distinguishes between new and previously-released problems). 7. Marking function (allows you to mark problems you answered correctly). 8. No ads. 9. List of all problems from beginner to advanced (including problems added to the web version) 10. Link to the Oishii Mathematics recurrence formula page, improved for the app (even those new to recurrence formulas can start from scratch) 11. Calculation sheet function (simple) First-time users can try out the free web version of Oishii Mathematics by searching "recurrence formula gacha" on Google. You can also search for "recurrence formula gacha" on X (Twitter).

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