I will introduce the CauchyEuler differential equations, aka the equidimensional equation, nonlinear second order differential equation ax^2y''+bxy'+cy=0,

Reduction of order, why we multiply by ln(x),    • solving 4x^2y''+y=0 by using reductio...  

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Update with Lars:
Л.С. Мото
1 hour ago
@blackpenredpen Thank you. I was released today early morning (almost 5pm in Europe now), and I feel so much better currently than after my first heavy session. I'm actually constantly hungry, and can't stop eating, and don't feel tired at all. No throwing up, no other symptoms at the moment... I feel absolutely great... hope it stays this way :)
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Here's the Euler's Formula:    • Euler's Formula (but it's a speedrun)  
Check out Dr. P and Oreo:    • The Oreo Review!  
Check out my differential equation playlists for more lessons and tutorials: https://www.youtube.com/@blackpenredp...

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#differentialequation #math #blackpenredpen