Archive - Sip & Sum

Function or Not? The Vertical Line Test

When is a graph a function? See why functions matter, the vertical line test, and how piecewise functions you learned in high school hint at limits in…

Oct 26, 2025 • Sara

September 2025

The Statistics of Synchronicity, Part 1

A light, first look into the physics experiment John Stewart Bell devised to study the quantum mechanics of Einstein’s local realism hypothesis.

Sep 28, 2025 • Sara

August 2025

LaTeX Tables in Substack, Step by Step

A step-by-step guide to learning how to make LaTeX tables using MathJax in Substack, with every variable, unit, formatting tip, and example for clean…

Aug 31, 2025 • Sara

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