From be2cf618d35bebfbcfa9c8459df0c44885a15b82 Mon Sep 17 00:00:00 2001
From: Jake Read <jake.read@cba.mit.edu>
Date: Tue, 9 Jan 2018 18:12:44 -0500
Subject: [PATCH] typo maths

---
 capacitive.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/capacitive.md b/capacitive.md
index 0d9fa57..26afe3d 100644
--- a/capacitive.md
+++ b/capacitive.md
@@ -20,7 +20,7 @@ In short, these solutions seem cool, but complicated, and I need to take some mo
 
 It's good to try to get a grounding on what's really going on. To get the basics in order, I go [here](http://hyperphysics.phy-astr.gsu.edu/hbase/electric/pplate.html). 
 
-Capacitance is $C = \frac{k * e * A}{d}$ where $k$ is the relative permittivity of the material between the plates, $e$ is a constant making $k * e = 1$ in air, $A$ is the area of the plates and $d$ is the separation of those plates. 
+Capacitance is $'C = \frac{k * e * A}{d}'$ where $'k'$ is the relative permittivity of the material between the plates, $'e'$ is a constant making $'k * e = 1'$ in air, $'A'$ is the area of the plates and $'d'$ is the separation of those plates. 
 
 Some quick thoughts 
  - do static tx / rx pads. reference is metallic thing that moves between them, changing the permeattivity of space between them
-- 
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