Using Matrices
in Excel
When you multply two matrices in excel, you
- 
drag over the region for the product matrix
 
- 
in the command bar type     =
(
 
- 
then drag over the 1st matrix,
 
- 
type a comma,
 
- 
then drag over the 2nd matrix, then type     )
 
- 
then press Ctrl-Shift-Enter
 
This document talks about a 1-D
rotation matrix, and how to build a spreadsheet which plots the appearance
of a constant vector (1,0) in the x,y frame as it is seen in a rotated
coordinate system.[ It does assume you know how to insert a scroll bar
to adjust the rotation angle.]
This spreadsheet
is one way of doing 1D rotation of a vector.