A math lover :)

Resource for calculus Single Variable Calculus Reference Recommendations

All time favourite:

https://astronomy.stackexchange.com/questions/36810/mathematical-analysis-of-blackhole

https://physics.stackexchange.com/questions/304799/definition-of-the-spacetime-interval

https://physics.stackexchange.com/questions/2166/is-time-travel-possible-is-it-possible-to-go-back-in-time

The discussion on which I have certainly fell in love: https://astronomy.stackexchange.com/questions/2240/what-is-a-singularity-what-is-at-the-center-of-a-black-hole-specifically-regar?rq=1

One of my favourite questions: Number of ways to select the election dates

One of my useful questions: Find the value of $a_{0}^{2}-a_{1}^{2}+a_{2}^{2}- \dots+a_{2 n}^{2}$

How to show that a polynomial does not have real roots?