PinnedPatrick MartinA Moon Mission Without CalculusThere’s more to math than calculus — let’s use material from pre-calculus to plan a Moon mission!Aug 21, 20211Aug 21, 20211
PinnedPatrick MartinPokeML: Understanding Principal Component Analysis through Pokemon DataNow that we have our Pokemon matrix from the last chapter, we can start doing some basic statistics on it. You can follow along by…Jul 12, 2021Jul 12, 2021
PinnedPatrick MartinPokeML — An Introduction to Data Science… using Pokemon!The world of data science involves organizing, processing, and interpreting large amounts of data, searching for trends, patterns, or…Jul 12, 2021Jul 12, 2021
Patrick MartinWe Can Do Better Than Transit Signal PriorityBus Rapid Transit (BRT) has received increased attention in recent years as a relatively cheap way to improve transit quality, especially…Jan 5Jan 5
Patrick MartinWhy is New Mexico’s Rail Runner So Slow?New Mexico’s commuter rail has a top speed of 80 mph but takes longer to travel between ABQ and Santa Fe than driving. Let’s find out why!Jan 20, 2023Jan 20, 2023
Patrick MartinZero Fare Public Transportation is GreatHaving a free line or subsystem of public transport isn’t a new idea. Baltimore’s Charm City Circulator has provided free service on four…Oct 18, 2022Oct 18, 2022
Patrick MartinWhy Can’t Amtrak Just Go Faster?Amtrak, particularly outside the northeast corridor, has a reputation for being slow and unreliable. I’ve previously written about the main…Aug 22, 20225Aug 22, 20225
Patrick MartinThe Universal Approximation Theorem is TerrifyingNeural networks are one of the greatest innovations in modern machine learning, with demonstrated abilities to produce mind-boggling…Aug 7, 202211Aug 7, 202211
Patrick MartinE-Bicycle Trips Are Surprisingly Fast — Top Speed Isn’t EverythingA common criticism of bike commuting is that it is “too slow”. E-bikes fix this, but the perception remains. Let’s do the math.Aug 6, 2022Aug 6, 2022
Patrick MartinDivision by Zero is Not Illegal, Just UndefinedIt’s a common refrain from grade school: you can’t divide by zero! Well, they also said we can’t subtract big numbers from small ones…Jul 22, 2022Jul 22, 2022