From 8278a5fa0e521d56e9a26522cf6c368290f4f0fe Mon Sep 17 00:00:00 2001 From: joshuab <> Date: Tue, 29 Jun 2010 03:21:39 +0000 Subject: a --- ClassJune26.page | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/ClassJune26.page b/ClassJune26.page index 81cd2eb..36c2e17 100644 --- a/ClassJune26.page +++ b/ClassJune26.page @@ -29,9 +29,8 @@ say this one, you rescale by its length, which we call its \textbf{magnitude}, and rotate counterclockwise by the angle it forms with the positive reals, with the horizontal, which we call its \textbf{argument}. So multiplying by this doubles lengths, and rotates $45^{\circ}$ counterclockwise; -\[ -(\nearrow)\cdot(\uparrow)=(\nwarrow)\] +$(\nearrow)\cdot(\uparrow)=(\nwarrow)\$ Multiplying by this halves lengths and rotates $300^{\circ}$ counterclockwise (or $60^{\circ}$ clockwise), taking this to that, and this to that. -- cgit v1.2.3