Fun with num3ers
Friday, April 22, 2011
Proof Without Words: Every Octagonal Number Is the Difference of Two Squares
http://legacy.lclark.edu/~mathsci/octnos.pdf
See also
http://legacy.lclark.edu/~mathsci/invitation.pdf
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment