md2any 0.3.0

---
title: A Wall of Famous Equations
subtitle: The greatest hits, set in STIX Two Math
author: md2any
date: auto
theme: light
aspect: 16:9
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math_block_align: center
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---

# A Wall of Famous Equations

A greatest-hits tour — from a patent clerk's β to the geometry of spacetime.

## Euler's Identity

The most beautiful equation in mathematics — five constants, one line.

$$ e^{i\pi} + 1 = 0 $$

## Mass–Energy Equivalence

Einstein's 1905 sequel to *On the Electrodynamics of Moving Bodies*.

$$ E = mc^2 $$

## The Lorentz Factor

Straight out of §6 of that 1905 paper — the β that warps space and time.

$$ \gamma = \frac{1}{\sqrt{1 - \dfrac{v^2}{c^2}}} $$

## The Schrödinger Equation

How a quantum state evolves in time.

$$ i\hbar\frac{\partial}{\partial t}\Psi = \hat{H}\Psi $$

## The Dirac Equation

Relativity meets the quantum — and predicts antimatter.

$$ \left(i\hbar\gamma^\mu\partial_\mu - mc\right)\psi = 0 $$

## Einstein's Field Equations

Matter tells spacetime how to curve; spacetime tells matter how to move.

$$ G_{\mu\nu} + \Lambda g_{\mu\nu} = \frac{8\pi G}{c^4}\,T_{\mu\nu} $$

## The Gaussian Integral

The bell curve's deceptively simple area.

$$ \int_{-\infty}^{\infty} e^{-x^2}\,dx = \sqrt{\pi} $$

## Bayes' Theorem

How evidence updates belief.

$$ P(A \mid B) = \frac{P(B \mid A)\,P(A)}{P(B)} $$

## Boltzmann's Entropy

Carved on his gravestone in Vienna.

$$ S = k_B \ln W $$

## The Basel Problem

Euler summed the reciprocal squares — and π showed up.

$$ \sum_{n=1}^{\infty} \frac{1}{n^2} = \frac{\pi^2}{6} $$