### BAD::September 2013 Basic Arithmetic Dates

 These BADs need to be checked for correctness. ```summation(9,13)=55; summation(sqrt(9),13)=88; summation(sqrt(9)!,13)=76 ```
```09/01/13: 1+summation(9,13)=56  [MathBabbler's age on this date]
09/02/13: sqrt(13-9))=2
09/03/13: sqrt(9)+3*13=42  ["Answer to Life, the Universe, and Everything"]
09/04/13: 9+4=13
09/05/13: sqrt(summation(5,13))=9
09/06/13: 136=9
09/07/13: sqrt(9)!+7=13...(13+9)/7~=Pi
09/08/13: sqrt(13-9)=cuberoot(8)
09/09/13: 13sqrt(9)!=9
09/10/13: sqrt(9)+10=13
09/11/13: avg(9,13)=11
09/12/13: 129=11
09/13/13
09/14/13: sqrt(9)=cuberoot(14+13)
09/15/13
09/16/13: 9+sqrt(16)=13...16-sqrt(9)=13
09/17/13
09/18/13
09/19/13: 19-13=sqrt(9)!
09/20/13: summation(sqrt(9)!,13)-20=56  [MathBabbler's age on this date]
09/21/13
09/22/13: 22-9=13...22/(13-sqrt(9)!)~=Pi
09/23/13: sqrt(9)!+23+13=42  ["Answer to Life, the Universe, and Everything"]
09/24/13
09/25/13: sqrt(summation(sqrt(25),13))=9
09/26/13: sqrt(9)+26+13=42  ["Answer to Life, the Universe, and Everything"]
09/27/13: sqrt(9)+(cuberoot(27)*13))=42  ["Answer to Life, the Universe, and Everything"]
09/28/13
09/29/13: 29%13=sqrt(9)
09/30/13: 1330+9=42 ["Answer to Life, the Universe, and Everything"]
```