International GeoGebra Institute (IGI) カテゴリ: 教育 リリース日: 2016-12-22 無料https://apps.apple.com/jp/app/geogebra-classic-6/id1182481622?mt=12&uo=2https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/16/d9/5c/16d95ce7-3485-6d83-b70a-98dfab3a06c1/electron.png/100x100bb.png