email 14. Wednesday 9th December. MAS2216/MAS3216 CBA 4 For questions with a yes/no answer please answer "yes" all lower case or "no" all lower case. ("Yes" and "No" will be marked wrong.) I will check the results and allow Yes and No after the marks are in: that is I'll change the mark if you answered "Yes" instead of "yes" etc, so you get full marks. But this has to be done by hand so it's error prone and marks may be missed. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 13. Thursday 3rd December. Assignment 4: marked scripts are in the box on level 3 outside the general office. CBA 4: Q2. A bipartite graph is one that has vertices partitioned into 2 sets A and B and every edge joins a vertex of A to a vertex of B. (This does not necessarily mean that all vertices of A are joined to all vertices of B.) Q4. The subgraph of a graph induced by vertices v1, ... ,vn is the subgraph which has vertices v1, ... ,vn and which includes only those edges of G which have both ends incident to one of the vertices v1,...,vn. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 12. Tuesday 1st December. MAS2216/MAS3216 Enumeration and Combinatorics. The lectures for the module are complete. There will be a drop in class on Wed 2nd December (12-1pm). On Monday and Tuesday of week 11 the lectures will be replaced by optional problem classes. The problem class on Wed 9th December is cancelled. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 11. Friday 27th November. MAS2216/MAS3216 Assignment 5 Questions 2.7 -2.9, Due Monday 7th December No help will be given with question 2.7 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 10. Friday 20th November. Schedule week 9. The problem class on Wednesday 25 November at 11am is cancelled. Instead there will be a problem class on Friday 27th November 2-3pm in Herschel LT 1. CBA 4. I have extended the practice version of CBA 4 to be open till midnight on Wed 2nd December. The test version will run from midnight on Wed 2nd December till midnight on Sunday 13th Decmeber. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 9. Thursday 12th November Assignment 4 Due on Monday 23rd November Questions 2.3-2.6. No help will be given with question 2.5. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 8. Wednesday 4th October Assignment 3 Question 1.15 The question should refer to Theorem 1.38 not Theorem 2.19. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 7. Monday 26th Oct Assignment 3. Due on Monday 9th November Questions 1.14, 1.15, 1.16, 2.1, 2.2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 6. Friday 23rd Oct CBA 2 will be open in practice mode till midnight on Tuesday: there were some mistakes in questions 5,6 and 7 and now some more hints and solutions have been added. (Assessed mode will be open from Monday as before). Note that on the CBA timetable "Monday at 12AM", means "one minute after 24:59 on Sunday", so the cut-off dates for all future CBAs is effectively midnight on a Sunday. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email5. Friday 23rd Oct Schedule for week beginning Monday 26th October. Monday 11-12 lecture HB LT2 as usual Tuesday 12-1 problem class HB LT2 **** change of schedule Wednesday 11-12 lecture HB LT2 **** change of schedule (That is, the problem class is swapped from Wednesday to Tuesday.) The second assignment is due on 26th October, see www.mas.ncl.ac.uk/~najd2/teaching/mas2216 for details. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 4. Monday 19th Oct There was an error in the timing of CBA 1 cut off, (which shut down at 16:10 instead of midnight). So that no-one is disadvantaged by this I have extended the deadline to midnight on Tuesday 20th October. Andrew Duncan %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 3. Tuesday 6 Oct. Question 1.5. Do part (a) of Question 1.5 only, for 10/12/09. Question 1.5(b) and 1.5(c) do not need to be handed in (these need some theory we have not covered). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% email 2. Tuesday 6 oct. 1) For those that spotted the problem: the 3rd question on the maple ta practice assignment is now working correctly. To repeat the Maple TA practice session it's necessary to click "grade", (then "grade" again if there are any incorrect answers) and then "Quit & Save". 2) There are solutions to the first few problem class questions on the web: http://www.mas.ncl.ac.uk/~najd2/teaching/mas2216/ and these should help with the assignment due on 12/10/09. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%55 email 1. -------- MAS2216/MAS3216 Enumeration and Combinatorics Assignment 1 is due on Monday 12/10/09 and consists of Questions 1.1 -1.5 in the booklet, Assignment exercises section. There will be a drop-in class on Wed 7/10 at 11-12 in HB LT2. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% CBA 1: Practice mode will run from 5/10 to 12/10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%