V9-11: D'Alembert's solution for wave equation, example, remarks, characteristics. Elem. Diff. Eqns.

[@alberteinstein7006]

Very good video, love from CN

[@aimalkhankakar8030]

Mam what is name of book and edition?

[@wenshenpsu]

I use my own notes.

[@Algebraic-Boy]

@@wenshenpsu please share your notes