need help with mobius inversion function
Difference between en1 and en2, changed 0 character(s)
i have been studying mobius inversion from last 1 week , and i have came across this beautiful article on it ↵
but i am not able to understand that how eq.3 is transformed into eq.4↵


![ ](/predownloaded/7e/c5/7ec5cd2800432b818d72916c274dc83ad52ee079.jpg)↵

[Here](https://www.quora.com/profile/Surya-Kiran/Posts/A-Dance-with-Mobius-Function) is the link to the article.↵

please help me if you can , i have spent a lot of time to understand it.↵

Thank you.

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English kazama460 2019-06-24 10:35:34 0 (published)
en1 English kazama460 2019-06-24 10:33:56 504 Initial revision (saved to drafts)