Andrew M.H. Alexander
I like words, math, mountains, and people.
I live in Northern California. I am originally from Ithaca, New York.
andrewmhalexander@gmail.com ⦿ (607) 592-4759
I’m spending Spring 2026 as a Visiting Professor at Deep Springs College!
from my introduction to logic class:
magic addition machines, in which we use logic to build arithmetic circuits
from my introduction to logic class:
magic addition machines, in which we use logic to build arithmetic circuits
the natural history of abstract objects
math through single-variable calculus
~~~ proofpilgrim.com ~~~
math:math through single-variable calculus
~~~ proofpilgrim.com ~~~
- “Theorems as Struggle and Search, or, Proofs and Refinements” (slides) (2026 Joint Mathematics Meetings)
- “Immersive Theatre, Interactive Fiction, and Multivariable Calculus” (slides, handout, video) (2025 Joint Mathematics Meetings)
- double integrals as paper cuts
- infinitesimal legos
- complex exponentiation zine (or, why ii is punk)
- multidimensional multivariable calculus syllabus
- giant compass constructions
- complex numbers notes
- logarithms and fractional exponents, literally
- sierpinski carpet coasters
- polar tetris
- my letter to the New York Times about math education
- ancient calculus notes
- Oliver Sacks on being an outsider
- Death, Birth, and the Class of 2024
- Callard and Brooks on education, aging, and “heterodidacticism”
- C.S. Lewis on excitement as immaturity
- On Richard Anderson and Chris Blackburn
- ballet : climbing :: math : programming
- Notes on sailing
- summer 2025: running, climbing, hiking
- “third-annual” foraging-themed northern california bike tour (march 2025)
- mammoth, december 2024
- the broken arrow 46k, june 2024
- trinity alps fishing report, august 2023
- the lost coast, november 2022
- cathedral peak, as a chronology of poops
- iowa, july 2021
- john muir trail, summer 2020 (planning doc) (photos)
- athens, sofia, istanbul; january 2019
- oregon, december 2015
- kashmir, december 2014
- new york, june 2011
- arizona: september 2010, april 2011
- south america, 2008: chile I, chile II, peru, argentina
- northern new york, march 2008
- iran, september 2007
- approach crocs
- bicycle drivetrain visualizer
- volumetric units demystified
- sierpinski carpet coasters
- double-red-eye time comprehension chart
- risk simulator
- BART visualizer
- chicago maroon columns
- r.o., et al., v. ithaca
- running, climbing
- christmas cards (2019, 2017, 2016, 2015, 2014, 2013, 2010)
- grandma janet’s memorial service booklet
- grandpa brian’s posthumous war memoir (PDF)
- my great-great-grandfather’s coming-to-america story
