A How to Solve This Differential Equation Analytically?

Click For Summary
The discussion centers on solving the differential equation $$\frac{2 y''}{y'} - \frac{y'}{y} = \frac{x'}{x}$$ analytically, where y and x are functions of t. A key hint provided is the transformation of terms into logarithmic derivatives, specifically $$\frac{2y''}{y'}=2\log\left(y'\right)',\quad\frac{y'}{y}=\log\left(y\right)',\quad\frac{x'}{x}=\log\left(x\right)'.$$ This approach suggests a method to simplify the equation for easier analysis. The conversation highlights the importance of recognizing patterns in differential equations to facilitate solutions. Overall, the thread emphasizes analytical techniques for tackling complex differential equations.
SantiagoCR
Messages
2
Reaction score
0
TL;DR
calculate integral of a differential equation
Hello,

can someone help me to solve the following differential equation analitically:

$$\frac{2 y''}{y'} - \frac{y'}{y} = \frac{x'}{x}$$

where ##y = y(t)## and ##x = x(t)##

br

Santiago
 
Physics news on Phys.org
Hint: $$\frac{2y''}{y'}=2\log\left(y'\right)',\quad\frac{y'}{y}=\log\left(y\right)',\quad\frac{x'}{x}=\log\left(x\right)'$$
 
  • Like
  • Informative
Likes Kumail Haider, SantiagoCR, Frabjous and 1 other person
renormalize said:
Hint: $$\frac{2y''}{y'}=2\log\left(y'\right)',\quad\frac{y'}{y}=\log\left(y\right)',\quad\frac{x'}{x}=\log\left(x\right)'$$
cool, thank you very much!
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 49 ·
2
Replies
49
Views
6K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 8 ·
Replies
8
Views
542
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 20 ·
Replies
20
Views
4K
Replies
3
Views
3K