From 23471914f31659d0e836156c64bd42858604b14f Mon Sep 17 00:00:00 2001 From: Andrew Lorimer Date: Tue, 4 Dec 2018 08:54:49 +1100 Subject: [PATCH] modulus function --- spec/prelim.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/spec/prelim.md b/spec/prelim.md index 586fc59..ed06b09 100644 --- a/spec/prelim.md +++ b/spec/prelim.md @@ -63,3 +63,6 @@ $${(x-h)^2 \over a^2} - {(y-k)^2 \over b^2} = 1$$ ${(x-h)^2 \over a^2} - {(y-k)^2 \over b^2} = 1$ and ${(y-k)^2 \over b^2} - {(x-h)^2 \over a^2} = 1$ are **conjugate hyperbolas** +## Modulus function + +$$|x|=\sqrt{x^2}$$ \ No newline at end of file -- 2.47.1