Some of my text-friends ask me how I can quickly type out mathematical symbols when we are discussing homework problems. Well, for one, I enabled the Greek keyboard on my phone, and then there’s this: taking advantage of the automatic text-replacement system built right in macOS and iOS.
Putting the iPad to the same good use, but publicly.
Summer is beginning, and my first three years of formal college education has come to an end. During this period, I have perfected the skills of Googling for good questions and solutions on a variety of subjects, *rarely* for homework, and for self-study.
It’s time to contribute too. New physics / maths blog posts in handwritten formats coming weekly. If there’s time to spare LaTeX things are possible as well.
Question #0
Q0. Show that the shortest path between two points on a sphere is the big circle.
![[To Scale] That Black Hole Picture](https://fwphys.com/wp-content/uploads/2019/04/img_1911.jpg?w=800)
![Watching the Ocean [Translation Work]](https://fwphys.com/wp-content/uploads/2019/02/scr00070.jpg?w=1024)
Yourong Frank Wang 