---
id: 2026-03-20T11:40:21-0400
title: 2026-03-20 11:40:21
tags:
  - status/draft
date-created: 2026-03-20T11:40:21-04:00
daily: "[[2026-03-20]]"
---
# 2026-03-20 11:40:21

## Causal Notation

[Causal notation](https://en.wikipedia.org/wiki/Causal_notation)
may be helpful in illustrating the relationships
between the quantities listed in:
* [[alternating-current]]
* [[voltage-drop]]
* [[conductor-sizing]]
* [[conduit-sizing]]

> [!quote]
> $$
> \begin{gather}
> s \overset {\rightarrow}{=} a(s) \\
> s \overset {\leftarrow}{=} b(s)
> \end{gather}
> $$
>
> $b(s)$ causes $s$ which in turn causes $a(s)$: $b(s) \overset {\rightarrow}{=} a(s)$

[Bayesian networks](https://en.wikipedia.org/wiki/Bayesian_network)
are a form of causal notation.
