From chipd at MIT.EDU Mon Apr 19 10:17:17 2004 From: chipd at MIT.EDU (Carl C Dietrich) Date: Mon, 19 Apr 2004 10:17:17 -0400 Subject: [Unified-mailman] Fwd: Fw: Foam Cutter Use on Monday Message-ID: <1082384237.4083df6d0dcd3@webmail.mit.edu> Office hours are on Tuesday afternoon this week (not today), however I can open the foam cutter room at 3pm this afternoon if there are teams who would like to use the machine. Please respond if your team would like to use the machine this afternoon/evening. -Carl ----- Forwarded message from pwyoung at ix.netcom.com ----- Date: Mon, 19 Apr 2004 05:03:56 -0400 (GMT-04:00) From: pwyoung at ix.netcom.com Reply-To: pwyoung at ix.netcom.com Subject: Fw: Foam Cutter Use on Monday To: howiek at mit.edu, chipd at mit.edu Howie and Carl - are you having office hours today? Can you help with this? Col Young -----Forwarded Message----- From: Luis R Perez Sent: Apr 19, 2004 12:25 AM To: pwyoung at MIT.EDU Subject: Foam Cutter Use on Monday Hey Col. Young, What would be the best time to use the foam cutter tomorrow (Monday)? Thanks. LUIS PEREZ ----- End forwarded message ----- From chipd at MIT.EDU Mon Apr 19 12:51:38 2004 From: chipd at MIT.EDU (Carl C Dietrich) Date: Mon, 19 Apr 2004 12:51:38 -0400 Subject: [Unified-mailman] None Message-ID: <1082393498.4084039a91e00@webmail.mit.edu> The foam cutter will be available after 3pm today. -Carl From srhall at MIT.EDU Tue Apr 20 15:46:33 2004 From: srhall at MIT.EDU (Steven R. Hall) Date: Tue, 20 Apr 2004 15:46:33 -0400 Subject: [Unified-mailman] Error on S11, part 2 Message-ID: <6D854BA4-9303-11D8-89EA-000A956F082C@mit.edu> Folks, On part 2 of S11, the equation should read H(s) k Gbar(s) ----- = ------------- R(s) 1 + k Gbar(s) where the Gbar(s) above should have a bar over the G (which I can't show, due to the limitations of ASCII). The numerator had been 1 instead of k G(s). That actually makes no difference to the problem. However, you do need to use the Gbar transfer function, not the G transfer function, to make the range of gains make sense. Steve Hall -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 497 bytes Desc: not available Url : http://mailman.mit.edu/pipermail/unified-mailman/attachments/20040420/d520b57a/attachment.bin From srhall at MIT.EDU Tue Apr 20 22:47:41 2004 From: srhall at MIT.EDU (Steven R. Hall) Date: Tue, 20 Apr 2004 22:47:41 -0400 Subject: [Unified-mailman] Lecture S12 and S13 Mud is on the web Message-ID: <41E4F76C-933E-11D8-9256-000A956F082C@mit.edu> Folks, Mud from Lectures S12 and S13 is now on the web at http://web.mit.edu/16.unified/www/SPRING/signals/ Steve Hall From srhall at MIT.EDU Wed Apr 21 10:48:02 2004 From: srhall at MIT.EDU (Steven R. Hall) Date: Wed, 21 Apr 2004 10:48:02 -0400 Subject: [Unified-mailman] Signals recitation Thursday; Quiz prep Message-ID: Folks, Tomorrow's recitation, which was originally scheduled to be a Computers recitation, will instead be a Signals recitation, because there is a Signals quiz on Friday, Also, for the quiz, you may prepare a crib sheet to bring with you. The crib sheet must be handwritten, on a single letter size piece of paper, using both front and back, if you wish. I will not provide a table of Laplace transforms, so the crib sheet would be a good place to make a small table of relevant transforms. The quiz will cover material up through my lecture on Wednesday, April 14. Good luck to all, Steven Hall From chipd at MIT.EDU Wed Apr 21 15:57:42 2004 From: chipd at MIT.EDU (Carl C Dietrich) Date: Wed, 21 Apr 2004 15:57:42 -0400 Subject: [Unified-mailman] Signals Lab Signup Message-ID: <1082577462.4086d236d5125@webmail.mit.edu> Students, Please sign up for the signals lab outside the TA office. The lab starts tomorrow afternoon. -Carl From ccoleman at MIT.EDU Wed Apr 21 17:02:44 2004 From: ccoleman at MIT.EDU (Charles P Coleman) Date: Wed, 21 Apr 2004 17:02:44 -0400 Subject: [Unified-mailman] NO SYSTEM PROBLEM PRESENTATION DUE! Message-ID: Students- Originally there was a validation and acceptance presentation due tomorrow as part of your system problem assignment. But since the signals and systems laboratory will be delivered tomorrow, no validation and acceptance presentation is due! However, Col Young and I would love to take a look at your finished product designs. If you'd like to schedule a time for us to come by and take a look at your work and discuss your strategies please send us an e-mail. Best- Charles -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.mit.edu/pipermail/unified-mailman/attachments/20040421/56ed95a3/attachment.htm From howiek at MIT.EDU Thu Apr 22 08:35:53 2004 From: howiek at MIT.EDU (Howard Kleinwaks) Date: Thu, 22 Apr 2004 08:35:53 -0400 Subject: [Unified-mailman] submit 2 copies of SP9 part 2 Message-ID: Students, Please remember to submit two copies of SP9 part 2. Thank you, --Howie From srhall at MIT.EDU Thu Apr 22 10:26:23 2004 From: srhall at MIT.EDU (Steven R. Hall) Date: Thu, 22 Apr 2004 10:26:23 -0400 Subject: [Unified-mailman] Change of Schedule --- Important Message-ID: <083F592C-9469-11D8-BE17-000A956F082C@mit.edu> Folks, There is one more schedule change to make, due to changing the Signals quiz date to tomorrow. Because I took Prof. Lundqvist's recitation today for a pre-quiz Signals review, she needs more time with you to help you prepare for next week's quiz. Therefore, the post-quiz review (S14) originally scheduled for tomorrow at 10, will be canceled. Instead, Prof. Lundqvist will use the hour for a full-class recitation, specifically covering algorithm analysis. Thanks, Steven Hall From ccoleman at MIT.EDU Thu Apr 22 13:00:02 2004 From: ccoleman at MIT.EDU (Charles P Coleman) Date: Thu, 22 Apr 2004 13:00:02 -0400 Subject: [Unified-mailman] Expanded practice times in Johnson Message-ID: All- Johnson will be available to practice for the competition tomorrow Friday 23 April 2004 from 9a to 3p and this coming Sunday 25 April 2004 from 9am to 3p, and again from 5p to 11p. Best- Charles -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.mit.edu/pipermail/unified-mailman/attachments/20040422/1ad3bcb4/attachment.htm From chipd at MIT.EDU Thu Apr 22 14:57:39 2004 From: chipd at MIT.EDU (Carl C Dietrich) Date: Thu, 22 Apr 2004 14:57:39 -0400 Subject: [Unified-mailman] Signals test tomorrow in 35-225 Message-ID: <1082660259.408815a3d3260@webmail.mit.edu> Students, Please do not forget that there is a signals test tomorrow at 9am in 35-225. -Carl From ccoleman at MIT.EDU Thu Apr 22 15:30:39 2004 From: ccoleman at MIT.EDU (Charles P Coleman) Date: Thu, 22 Apr 2004 15:30:39 -0400 Subject: [Unified-mailman] Sign-ups needed to guarantee Fri and Sun Johnson hours Message-ID: Students- I order to guarantee tomorrow's 9a-3p practice times and Sunday's 9a-3p, 5p-11p practice times, I need teams to sign up for times to practice during those days and hours. Would you please send me (today!) your team name and days and hours that you plan to practice tomorrow and/or Sunday so that I can forward the information to Johnson reservations and guarantee your time? Best- Charles -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.mit.edu/pipermail/unified-mailman/attachments/20040422/e3348754/attachment.htm From srhall at MIT.EDU Thu Apr 22 16:12:39 2004 From: srhall at MIT.EDU (Steven R. Hall) Date: Thu, 22 Apr 2004 16:12:39 -0400 Subject: [Unified-mailman] Signals concepts on the web Message-ID: <67833E76-9499-11D8-BE17-000A956F082C@mit.edu> Folks, As announced in the lab lecture today, the Signals Concept tests are posted on the web, on the signals home page. Where appropriate, I have marked a correct answer. Good luck on the quiz tomorrow. Steven Hall From kristina at MIT.EDU Fri Apr 23 15:22:04 2004 From: kristina at MIT.EDU (Kristina Lundqvist) Date: Fri, 23 Apr 2004 15:22:04 -0400 Subject: [Unified-mailman] BigO[1..3].adb Message-ID: <5.2.1.1.2.20040423152010.03306838@po14.mit.edu> Students, Attached are the three Ada files that was used in todays recitation. ..IKL -------------- next part -------------- ------------------------------------------------------------------------ -- BigO.adb Recitation 3 -- Demonstrates an O(N^2) algorithm -- when size of n (Array size) doubles, the execution time grows 2^2 times -- Specified: IKL -- Created: 4/22/04 -- Last Modified: ------------------------------------------------------------------------ with Ada.Text_Io; use Ada.Text_Io; with Ada.Calendar; use Ada.Calendar; procedure Bigo is type Int_Array is array (Integer range <>) of Integer; procedure Measure ( A : Int_Array ) is Start : Time := Clock; Sum : Integer := 0; begin -- Measure for I in A'range loop for J in A'range loop Sum := Sum + A(J); end loop; end loop; Put_Line ("Size of array is: " & Integer'Image (A'Length)); Put_Line ("and time in seconds is: " & Duration'Image (Clock-Start)); New_Line (2); end Measure; begin --Main for I in 1..20 loop -- for I in 1..10 loop declare A : Int_Array (1 .. 2**I) := (others => 0); -- A : Int_Array (1 .. 10**I) := (others => 0); begin Measure (A); end; end loop; end Bigo; -------------- next part -------------- ------------------------------------------------------------------------ -- BigO2.adb Recitation 3 -- Demonstrates an O(n^2) algorithm -- when size of n (Array size) doubles, the execution time grows -- quadratic -- Specified: IKL -- Created: 4/22/04 -- Last Modified: ------------------------------------------------------------------------ with Ada.Text_Io; use Ada.Text_Io; with Ada.Calendar; use Ada.Calendar; procedure Bigo2 is type Int_Array is array (Integer range <>) of Integer; procedure Measure ( A : Int_Array ) is Start : Time := Clock; Sum : Integer := 0; begin -- Measure for I in A'range loop -- for J in A'range loop for J in 1 .. I loop Sum := Sum + A(J); end loop; end loop; Put_Line ("Size of array is: " & Integer'Image (A'Length)); Put_Line ("and time in seconds is: " & Duration'Image (Clock-Start)); New_Line (2); end Measure; begin -- Main for I in 1..20 loop -- for I in 1..10 loop declare A : Int_Array (1 .. 2**I) := (others => 0); -- A : Int_Array (1 .. 10**I) := (others => 0); begin Measure (A); end; end loop; end Bigo2; -------------- next part -------------- ------------------------------------------------------------------------ -- BigO3.adb Recitation 3 -- Demonstrates an O(n) algorithm -- when size of n (Array size) doubles, the execution time also doubles -- Specified: IKL -- Created: 4/22/04 -- Last Modified: ------------------------------------------------------------------------ with Ada.Text_Io; use Ada.Text_Io; with Ada.Calendar; use Ada.Calendar; procedure Bigo3 is type Int_Array is array (Integer range <>) of Integer; procedure Measure ( A : Int_Array ) is Start : Time := Clock; Sum : Integer := 0; begin -- Measure for I in A'range loop -- for J in A'range loop -- for J in 1 .. I loop for J in 1 .. 4 loop Sum := Sum + A(I); end loop; end loop; Put_Line ("Size of array is: " & Integer'Image (A'Length)); Put_Line ("and time in seconds is: " & Duration'Image (Clock-Start)); New_Line (2); end Measure; begin -- Main for I in 1..20 loop -- for I in 1..10 loop declare A : Int_Array (1 .. 2**I) := (others => 0); -- A : Int_Array (1 .. 10**I) := (others => 0); begin Measure (A); end; end loop; end Bigo3; From ejordan at MIT.EDU Sun Apr 25 23:07:46 2004 From: ejordan at MIT.EDU (Elizabeth Jordan) Date: Sun, 25 Apr 2004 23:07:46 -0400 Subject: [Unified-mailman] SGT Curriculum Panel Event for Sophomores Message-ID: <5.0.2.1.2.20040425225006.02323150@hesiod> Sophomores- Do you have questions about your class options for next year? Want more information on the professional area subjects, capstone classes, or requirements? Sigma Gamma Tau will be holding an informal panel discussion where you can ask any questions you have. A few juniors and seniors will be available to tell you about their personal experiences, give you some advice on how to make the most of the next two years in the department, and to answer any questions you have. This event will be next Sunday, May 2, at 5:00pm in 33-116. That's right after unified office hours, so you can all make it. We hope to see you all there! Sincerely, Elizabeth Jordan SGT Vice-Pres