- 18:21, 11 March 2009 (diff | hist) . . (+416) . . N 19. Find a recurrence for the number of strings using the letters a,b,c,d that do not have "cd" nor "dd" in them. (Hint: start at the end.) (New page: You can do this by realizing that if the last letter is an a, b, or c you have a_n-1 choices for the first n-1 letters. However, if the last letter is d, you do not want cd or dd, so you c...) (current)
- 12:19, 4 March 2009 (diff | hist) . . (+845) . . N Karen Shen (New page: Category:MA375Spring2009Walther Back 7.1 / #36 a) Say there are a_n ways to pay a toll of n cents. Since order matters, let us look at the last...)
- 12:13, 4 March 2009 (diff | hist) . . (+16) . . MA 375 Spring 2009 Walther Week 5
- 16:04, 25 February 2009 (diff | hist) . . (+254) . . MA 375 Spring 2009 Walther Homework 6 Number 18 (current)
- 18:35, 18 February 2009 (diff | hist) . . (+5) . . MA 375 Spring 2009 Walther Homework 5 Number 32
- 18:19, 18 February 2009 (diff | hist) . . (+251) . . MA 375 Spring 2009 Walther Homework 5 Number 32
- 15:10, 12 February 2009 (diff | hist) . . (+131) . . MA 375 Spring 2009 Walther Week 2
- 12:10, 4 February 2009 (diff | hist) . . (+565) . . 28
- 15:29, 28 January 2009 (diff | hist) . . (+38) . . Karen's Weekly Schedule (current)
- 06:43, 21 January 2009 (diff | hist) . . (+29) . . MA 375 Spring 2009 Walther Week 1
- 06:43, 21 January 2009 (diff | hist) . . (+14) . . Karen's Weekly Schedule
- 06:43, 21 January 2009 (diff | hist) . . (+155) . . N Karen's Weekly Schedule (New page: I am free after 4 on Mondays and Wednesdays. I am booked all other days of the week, besides the occasional Thursday between 4 and 9. Sundays are okay too.)
