MAT244-2013S > Ch 1--2

Bonus problem for week 2

<< < (2/2)

Brian Bi:

--- Quote from: Changyu Li on January 18, 2013, 01:41:07 AM ---let $v = ut,\;\frac{dv}{du}=t+u \frac{dt}{du}$
--- End quote ---
What's the motivation for this? Inspired guess?

Victor Ivrii:

--- Quote from: Brian Bi on January 20, 2013, 08:59:46 PM ---
--- Quote from: Changyu Li on January 18, 2013, 01:41:07 AM ---let $v = ut,\;\frac{dv}{du}=t+u \frac{dt}{du}$
--- End quote ---
What's the motivation for this? Inspired guess?

--- End quote ---

Standard method solving homogeneous equations i.e. of the form $y'=f(y/x)$.

Brian Bi:
I see. Is this covered in class or in the textbook? I can't find it in the textbook.

Changyu Li:
Problem 30 from chapter 2.2 in the tenth edition is a similar problem with a partial solution.