## Thursday, May 14, 2009

### zeeeh Bob

Everyone's bob is intimidating.
• Fundimental Principal of counting
• Factorial Notation
• Permutations
• Permutations of Non-Distingushable Objects
• Circular Permutaions
• Combination
There was a number of different formulas and terms we learned in this unit.

• n! = n · (n-1) · (n-2) ...etc
• r = generally means the amount of objects to be arranged
• P = "pick"
• c = "choose"
This unit has been the easiest to understand so far. We learned a number of different things for such a short unit.

The ideas were simple but i have most difficulty on finding what formula to use for a problem. Like to choose the "pick" or "choose" formula.

Also, circular permutations and middle terms are difficult for me to understand.

OH I loved how Mr.K showed us how math applies to what we believe is beautiful. I wish we could have went more indepth with that. Math is EVERYWHERE.

Note to self:
• It is easier to just draw a diagram!
• Permutations are when order matters.
• Combinations are when order does NOT matter.
• Mr.K has Math Powers.
• when solving certain problems with permutations with 0, o's are special!
• (n "over" r) is NOT (n/r)
• im tired.
• Don't take on too many things at the same time :|