# Manny's Weekly Rant (Ep. 1)

**URL:** <https://forum.kirupa.com/t/mannys-weekly-rant-ep-1/93358>\
**Category:** Uncategorized\
**Created:** [October 29, 2003, 8:14pm UTC](https://forum.kirupa.com/t/mannys-weekly-rant-ep-1/93358 "2003-10-29T20:14:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![thoriphes](https://avatars.discourse-cdn.com/v4/letter/t/9fc348/32.png) [@thoriphes](https://forum.kirupa.com/u/thoriphes)\
**Post date:** [October 29, 2003, 8:14pm UTC](https://forum.kirupa.com/t/mannys-weekly-rant-ep-1/93358/1 "2003-10-29T20:14:32Z")

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[r]When you’re finding the particular solution to a nonhomogeneous equation and you get an unknown constant (which is all/most of the time), you don’t use the solution equation of the whole differential equation as a basis for finding that unknown constant! You have to substitute the particular solution _with_ the unknown constants into the original differential in order to find that constant. ARGH!!!

There goes 3 well deserved points.

🅰[/r]