Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #1 20100208 10:01:31
Chess Knight Add 3 Sub 3If you know how a knight Last edited by John E. Franklin (20100208 14:07:13) igloo myrtilles fourmis #2 20100209 05:11:29
Re: Chess Knight Add 3 Sub 3Hi John; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20100209 05:48:09
Re: Chess Knight Add 3 Sub 3Yes, I'm only looking at the last digit. igloo myrtilles fourmis #4 20100210 08:36:41
Re: Chess Knight Add 3 Sub 3Last edited by John E. Franklin (20100215 13:05:51) igloo myrtilles fourmis #5 20100215 12:59:51
Re: Chess Knight Add 3 Sub 3Here's something I kind of like for adding numbers together By putting the zero and five at the center points, some very nice symmetry occurs in adding pairs of numbers together. There are 55 adding problems we remember as children, 36 that are not trivial (without 1 or 0 in them). Try them all on this for fun in geometric groups such as diagonals, poles, longest diagonals, doubles, horizontal beams, 5 added to any number, etc. Last edited by John E. Franklin (20100218 03:57:03) igloo myrtilles fourmis 