Sub Matrix
Sub Matrix
Obelisk Movements revisited
A decade later, Micranots debut is both primitive and eloquent... By Chad Radford When Micranots' debut CD, Obelisk Movements, hit the streets in October 2000, the Minneapolis-bred, ATL transplants MC I Self Devine and DJ Kool Akiem were primed to dominate Atlanta's developing underground hip-hop scene. The album bore the mark of Bigg Jus' Sub Verse label (MF Doom, Blackalicious), and I Self's ...
For More Sub Matrix Info Click On The Blue Links Below
 Soundcraft 800B Sub Group Matrix Strip 8016 Series US $40.00 
|
 Soundcraft 800B Sub Group Matrix Strip 8013 Series US $35.00
|
 Toyota BOX Sub Assembly interior Console Corolla Matrix auto car new 2002 2008 US $66.00
|
 VPR Matrix 220A5 110 Audio I O SUB Board DABM1AB18D0 US $4.95
|
 2003 204 2005 2006 2007 2008 Toyota Matrix Carpet Cargo Mat Dk Gray W o Sub US $63.50
|
 Aten Vs0204 4 port Video Matrix Switch 4 X D sub hd 15 Monitor 1600 X 1200 US $115.27
|
 Performance Teknique ICBM MATRIX 7 Band Parametric Equalizer w Sub Output EQ US $43.91
|
 Matrix Reloaded Ws Sub Matrix Reloaded Ws Sub Blu Ray NEW Blu Ray N US $12.54
|
 Matrix 1999 Ws Sub Ac3 Dol Amar Rpkg Matrix 1999 Ws Sub Ac3 Dol Amar US $10.16
|
 Matrix Reloaded 2Pc Ws Dub Sub Dol Matrix Reloaded 2Pc Ws Dub Sub Dol US $10.16
|
 2003 08 Toyota Matrix Carpet Cargo Mat Dk Gray W o Sub US $64.00
|
 VPR Matrix 220A5 110 Audio I O SUB Board DABM1AB18D0 US $9.18
|
 Pair 2 OZ Audio Matrix Elite 10 10inch Car Subwoofers Subs Dual 2 Ohm SQL US $304.99
|
 CRESSI Cressi sub Snorkel and Matrix Mask Set Yellow US $99.99
|
 Cressi Sub Matrix Scuba Dive Mask Scuba Mask US $60.99
|
 WORLDS HEAVIEST DRUM BASS 3xCD dnb EZ Rollers Origin Unknown Sub Focus Matrix US $20.62
|
 ASTRAL MATRIX do it 96 12 3 trk sub15t uk rmp 1996 US $9.51
|
 Matrix Revolutions dvd ws 2 Disc frsp sub dvd rom Features making Of] warner US $8.52
|
 Animatrix dvd prequel To Matrix 9 Shorts ws 235 dolby 51 eng fr sp sub] US $12.95
|
 Matrix Reloaded dvd ps 51 eng fren span sub documentaries] warner Home US $11.21
|
COBOL features are inherent that perform array manipulations quire efficiently. Typically you use integer variables as indices. Then the Perform Varying with the after option is used to iterate through the array. Many COBOL programmers are not aware of these available feature let alone how to employ them in problem solving.
While serving as an Airline Executive for Trans World Airlines (New York & Kansas City) part of my duties assigned was to manage flight crews for every flight TWA flew (domestically) for a month in advance. That task alone drove many COBOL programmers beyond the brink! But I was not one of them.
When I was assigned to the project I told my supervisor we (me, myself and I) eat this stuff up (WETSU)! Another caveat to the application was that each flight had to recognize the change in time due to usage of daylight savings time. Almost every state adheres to daylight savings time except Arizona and a couple of other places. The project was an overall success to the point my management then turned over all the international flight and told me to do the same thing for all international flights. I said no problem!
When I became the Project Officer for Crew Scheduling approximately one hundred twenty five COBOL programs had the time tables hard coded throughout all the source code of the application. When the application ran it consumed about nineteen hours (wall clock time) to run from beginning to end.
Closer scrutiny of the problem revealed a large portion of the wall clock tine involved was consumed allocating and de allocating the same few files repeatedly.
Being a pioneer of thinking outside the box I examined the code executed and figured a way to allocate each file only once. Then all the code was organized as sub programs and every subprogram that access information for that file was called in the appropriate sequence. This process was repeated until all the data used for the generation of the operational schedules was accessed and utilized. The overall end result was a complete set of operational schedules in a fraction of the time normally required for successful completion.
The nineteen hours turned into only twenty minutes for successful execution. My work was duly noted and I received a cash incentive award of several thousand dollars for the re design of the system and performance improvement.
My next task was to eliminate the need to change the source code of the application twice a year. The twice a year changes covered the spring forward fall back scenario of daylight savings time.
A matrix or table was designed to hold each originating flight departure time followed by each subsequent flight segment departure time. Another leg of the matrix housed the arrival times for each flight segment. That comprises two dimensions of the multi dimensional array designed to accommodate each flight flown by TWA for a month in advance. In the spring forward scenario one hour was added to the departure and arrival times respectively. Of course in the fall back scenario one hour was subtracted from the departure and arrival time respectively. Other matrices accommodated the four time zones for the continental United States. Still other matrices accommodated the fifty states.
Beginning with the outermost matrices the iterations began while the indices were decremented until all matrices were accommodated. The perform varying after option was used for the most frequent number of occurrences in each matrix. Of course by the final iteration the flight schedule for EST, CST, MST and PST were changed to Daylight Savings Time and vice versa. The table was the only code that changed the time required to re compile those one hundred or so programs was eliminated also. Now that I think about that project that was approximately thirty one years ago!
Please feel free to contact me at my web site below for further assistance in this as well as other endeavors. Simply click on the free consultation link at the top of every active page on the web site.
Mr. Arch Brooks, Software Engineer
http://archbrooks.com
Many thanks for reading our Sub Matrix article
Recent Sub Matrix deals on ebay