Geogebra是一個數學作圖軟體。
update at 2025-07-13 官方離線下載地址：https://clients2.google.com/service/update2/crx?response=redirect&os=win&arch=x64&os_arch=x86_64&nacl_arch=x86-64&prod=chromecrx&prodchannel=&prodversion=77.0.3865.90&lang=zh-CN&acceptformat=crx2,crx3&x=id%3Dbnbaboaihhkjoaolfnfoablhllahjnee%26installsource%3Dondemand%26uc
下載地址：https://wiki.geogebra.org/en/Reference:GeoGebra_Installation