Aug 19 2019 (Finished) Sunrise Alarm## It can get really bright.

Jul 17 2019 My DIY Sunrise Alarm Clock## Why and how I wrote an Android app and wired up some hardware to simulate the sunrise

Feb 15 2019 Turn Gmail attachments to Google Docs to save space## Google Docs files don’t count against your Google storage quota, while Gmail attachments and all other file formats do. So, I made a tool to take attachments, import them as Google Docs, and replace the original attachment with links to the imported file

Jan 6 2019 When typing, your fingers are like a superscalar processor## Sometimes bad analogies are the most interesting ones because they make you really think about the two things you’re comparing. So here’s one such analogy that made me think more about CPU microarchitecture.

Nov 20 2018 FFT-Based Integer Multiplication, Part 2## How the Schonhage-Strassen algorithm uses the number theoretic transform (NTT) to multiply N-bit integers in O(N log N log log N) time

Oct 19 2018 FFT-Based Integer Multiplication, Part 1## The fast Fourier transform allows us to convolve in n log n time, which is useful for fast multiplication. But the FFT uses floating-point calculations; what problems does this cause when we want exact integer results?

Oct 2 2018 Markov Chains, Beyond the Mean## Suppose we are interested in the number of moves it takes to move from an initial state to another given state in a Markov chain. Finding the expectation of the number of moves is simple, but how about its variance?

Sep 20 2018 The Poisson, Exponential, and Uniform## Three distributions, all connected

Sep 12 2018 Hello from my blog## Blogging about setting up my blog: my experiences with the Hugo static site generator and the challenges that come from trying to minimize work/bloat sent to the client

© Copyright 2019 Phil Sun