Fall 2006
No recitation this Friday, Dec. 15th since that is the day of your final exam.
Good Luck!
Some of you have made this mistake in your homeworks with JFLAP:
That is, a transition with several symbols separated by comma is created (wrong), instead of creating one transition for each symbol (right).
For example, creating one transition using 1,2 is wrong, so you have to create two transitions: one for 1 and another for 2.
You can see the greek letter epsilon in JFLAP 6.0 instead of lambda by changing the preferences:
Thanks to Eduardo Gonzalez for pointing this out. This was not possible in version 4 which is the one I was using.
Today's office hours have been moved to friday at 4:30pm
This change is only for today.
Do not forget to use JFLAP for your exercises in the book by Sipser:
Version 4.0 is a "very stable version" according to the webpage, but you can download version 6.0 if you prefer, which has been already released in September (i.e. it is not a beta version)
Please read the updated "Important Guidelines" regarding the following message in your grade report:
??? We could not determine whether your __________ was correct: The Grade Grinder timed out while checking your answer ...
If you find that any of the files included with your distribution of the LPL software is corrupt, you can download an update (programs + exercise files) from here:
http://atropos.stanford.edu/cgi/WebObjects/StudentPages
You will need your email and book ID.
If, for some reason, that does not solve your problem, you can always contact me (but obviously, at 2:00am on friday there is not too much I can do for you) so that I can send you a non corrupt file.
We did both recitations in classroom 5313 because an event was held in our regular classroom. I was not notified of this and therefore I could not make an announcement with anticipation
Dr. Ramirez communicated us that you should use this link to sign up for an advising session:
http://www.cs.pitt.edu/~ramirez/advising/login.php
Introduction to the Software used in the course
Recitations
Office Hours:
Books & Software:
General
Any paper and pencil assignment must be turned in at the beginning of each recitation, and any electronic submission must be sent before the 11am recitation.If you handwrite any part of a homework, please be sure that your writing is legible.If you want to turn in a written homework before the due date, please feel free to drop it in my mailbox: 306 (sixth floor) and notify me by email. This last specification is mandatory. I will consider late any homework put in my mailbox without a notification by email (no exceptions) and either substract points or completely disregard the submitted homework.
Any paper and pencil assignment must be turned in at the beginning of each recitation, and any electronic submission must be sent before the 11am recitation.
If you handwrite any part of a homework, please be sure that your writing is legible.
If you want to turn in a written homework before the due date, please feel free to drop it in my mailbox: 306 (sixth floor) and notify me by email. This last specification is mandatory. I will consider late any homework put in my mailbox without a notification by email (no exceptions) and either substract points or completely disregard the submitted homework.
LPL
Sipser
For the part of the course that uses the book by Sipser, you must use the software JFLAP (please see above) to create:
However: If you are assigned a proof, you will not be able to use JFLAP, instead you may use paper and pencil or (better yet) create your proof in Microsoft Word and send it to me by email (see below).Please use the following naming conventions for your JFLAP files:<last name>.ex<chapter>.<exercise number>[<subnumber>].jffFor example, if your name is Jacob Williams, you can have files named in this way:Williams.ex1.15a.jff Williams.ex1.15b.jff Williams.ex1.12.jffIn the first two cases you are submitting parts a) and b) respectively of exercise #15 in chapter 1, while in the third case you are submitting the entire exercise #12 in chapter 1 which does not have any subpart. (Note: the exercise numbers come from the 1st edition of Sipser, numbers may have changed in the 2nd edition)Once you have finished all your JFLAP files, pack them in a ZIP or GZIP file and send the packed file to rmv4 AT pitt DOT edu. Please name your packed file in this way:<your last name>,<your first name>.HW<number>.<zip | tar.gz>For example: Williams,Jacobs.HW8.zipMeans that you are submitting your homework #8 in zip format.
However: If you are assigned a proof, you will not be able to use JFLAP, instead you may use paper and pencil or (better yet) create your proof in Microsoft Word and send it to me by email (see below).
Please use the following naming conventions for your JFLAP files:
<last name>.ex<chapter>.<exercise number>[<subnumber>].jff
For example, if your name is Jacob Williams, you can have files named in this way:
In the first two cases you are submitting parts a) and b) respectively of exercise #15 in chapter 1, while in the third case you are submitting the entire exercise #12 in chapter 1 which does not have any subpart. (Note: the exercise numbers come from the 1st edition of Sipser, numbers may have changed in the 2nd edition)
Once you have finished all your JFLAP files, pack them in a ZIP or GZIP file and send the packed file to rmv4 AT pitt DOT edu. Please name your packed file in this way:
<your last name>,<your first name>.HW<number>.<zip | tar.gz>
For example: Williams,Jacobs.HW8.zip
Means that you are submitting your homework #8 in zip format.
Communication by email
If you need to communicate with me by email, please follow these simple rules:
If you want to change the From field of your Pitt account's webmail, please do this:Login to Pitt's webmail: https://webmail.pitt.edu/webmail/src/login.php Click on Options and then on Personal Information Put your name in the field Full Name Click the button Submit
If you want to change the From field of your Pitt account's webmail, please do this:
