Ripple calculation

as you see in my attachments
Attacment 1 :

Attacment 2 :

I want to calculate the ripple for this peak But i don’t know the right way for calculation. in attachment 2 , there is a formula for gradiant composition.

please help to solve this problem .


<img src=/uploads/db7093/original/1X/bb5266e101b45e50e8083b4e99bb9c98e4ebecc9.jpg">

<img src=/uploads/db7093/original/1X/a5d19aa92af90e6fa5a73a608be6300271587ef2.jpg">