【大學工程數學】微分方程篇｜工程數學考衝｜級數解微分方程 (上)

Picked one by one from a mixed channel; title passed two strict editor passes and the clickbait rules.

A 41-minute video from 數學老師張旭: “【大學工程數學】微分方程篇｜工程數學考衝｜級數解微分方程 (上)”.

Video by 數學老師張旭, played through YouTube's embedded player.