From: Andrew Lorimer Date: Mon, 3 Dec 2018 21:54:49 +0000 (+1100) Subject: modulus function X-Git-Tag: yr12~288^2~7 X-Git-Url: https://git.lorimer.id.au/notes.git/diff_plain/23471914f31659d0e836156c64bd42858604b14f modulus function --- 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