Sunday, January 1, 2017

Happy New Year 2017!

Happy New Year 2017!
Now that it's 2017, I suppose it's time for a New Year's Resolution: 

"I resolve not to get upset every time I see a blatant disregard for the proper use of units or a lack of number sense!" 

This problem shows up everywhere. I think you'd be very surprised by just how ubiquitous this issue actually is. Take a look at just a few examples below.

Verizon To The Rescue!
This audio clip, turned YouTube video, is one of the most infamous examples of this complete disregard for number sense and dimensional analysis. Suffice it to say that an approximate 36000 KB data overage times 0.002 cents per KB is billed at approximately $72???

Potato Farmer
Me: My dear sir, that's quite a sign you have!
Farmer: Why, yes, we are having a big sale.
Me: I can see that! This sale is amazing!
Farmer: May I interest you in some potatoes?
Me: Certainly, I'll take 100lbs.
Farmer: Dear me, how wonderful...
Farmer: Just a minute while I fetch 100 bags!
Me: Thank you, take your time, no hurry...
Farmer: There you go, done loading your car.
Me: Here you are, my good man...
Me: You get a nice new crisp $1 bill...
Farmer: What's the meaning of this?
Me: You did such a fine job, keep the change!
Me: I know, it's way too generous,
Me: but I think you've earned it!
Farmer: This is an outrage!
Me: No, no, you can keep the change. 
Me: After all, with the extra penny,
Me: you can get a whole pound for yourself
Me: with change to spare, no less!
(above: similar problem at my supermarket)

Library Matron
Clearly, the Librarian meant 10 cents per page printed from the PC Lab. However, under the unwritten rules of "Truth In Advertising" I would be fully within my rights to demand 10 printed pages for a single penny, no?

Local Deli
The Deli Guy is guilty of the same gross negligence of proper units usage. Did he mean 50 cents per sandwich? Shall we just give him a pass? No, say I, no more Mr Nice Guy! We can't let this slide anymore. Keep this up and it will soon be the end of civilization as we know it! How about 50 cents for 100 sandwiches?

Tile Store
Is the Tile clerk guilty of this mortal sin as well? So, shall we pay our 69 cents per tile and meekly walk away shaking our collective heads without uttering so much as a single cough in derision? No, I will make my order and pay 69 cents for 100 tiles! Maybe I'll take 1000 tiles off the clerk's hands for a measly $6.90! Why stop there, how about 10000.... OK, ok, now this is getting out of hand!

Parting Blow
Sorry, I have no further commentary. This last example just takes the cake!

Wait, just when you thought it could not get any worse, there's more:

OK, just one more: 
This one opens up a whole other can of worms! My neighbor's mailbox is supposed to have a street address of 226 Such-And-Such Lane. Did he mix up his Roman Numerals with his Arabic Number System?

Well, that's all folks,
A. Jorge Garcia

 Applied Math, Physics and CS
2017 NYS Secondary Math PAEMST Nominee

Sage Ebay

Friday, December 30, 2016

AP Calculus BC 2016-2017: December

AP Calculus BC 2016-2017:

This unit was all about applying what we know about Anti-Derivatives! We solved Variable Separable Differential Equations. We calculated the Area Between Two Curves. We found Volumes Of Revolution and Volumes With Known Cross-Sections in terms of the differentials dx and dy! We even derived formulas for Arc Length and Surface Area.

YouTube Wednesday: Fractals on Nova!

Teaching With Technology,

preCalculus 2016-2017: December

preCalculus 2016-2017:

This chapter was all about Sequences and Series! We talked about summing Arithmetic and Geometric sequences analytically and graphically! We derived the formula for finite Arithmetic and Geometric Series as well as infinite Geometric Series. We graphed sequences and sequences of partial sums using Sequence Mode on the TI-84C. We played around with Pascal's Triangle, Binomial Expansion Theorem and Binomial Probability Distributions. We even looked at Recursively Defined Sequences modeling Annuities and Mortgages!

YouTube Wednesday: Fractals on Nova!

Teaching With Technology,

AP Computer Science 2016-2017: December

AP Computer Science 2016-2017:

We spent a bit of this month finishing Lab05/Chap06 on Conditional Statements, Boolean Expressions, Truth Tables and Predicate Methods! Then we did a WEEK Of Code devoted to Daniel Shiffman's excellent tutorial on Processing. Now we are in the midst of Lab06/Chap07 about Iteration!

YouTube Wednesday: Cliff Stoll on Nova!

Teaching With Technology,

Well, that's all folks,
A. Jorge Garcia

 Applied Math, Physics and CS
2017 NYS Secondary Math PAEMST Nominee

Sage Ebay

CIS(theta), 2016-2017 Dec Meeting: Fire Up The Cluster!

CIS(theta), 2016-2017 
Dec Meeting: Fire Up The Cluster!

This month's meeting was about introducing the idea of a COTS or COW Linux Cluster running MPI. COTS, BTW, stands for Commodity Off The Shelf. In other words, a cluster made of commonly available hardware such as the PCs in my classroom! 

We downloaded the latest ISO of the Pelican HPC DVD which can boot up the whole room in about 5 minutes! We couldn't get all 100 cores running for some reason. However, we did get 88 cores running at bout 44 GFLOPs.

09/14/2016 (organizational meeting)
10/26/2016 (installing Ubuntu 16.10 64bit)
11/09/2016 (installing Ubuntu 16.10 64bit)
12/14/2016 (Pelican HPC DVD)
01/11/2017 (openSSH Public Keys)
02/08/2017 (openMPI Software Stack)
03/08/2017 (Fractal Plots)
03/22/2017 (Fractal Zoom Movie)
(03/29/2017 is a make up day)
04/26/2017 (POVRAY Animation)
05/10/2017 (Blender Animation)
(05/24/2017 is a make up day)

So, what's all this good for aside from making a Fractal Zoom or Shrek Movie?

SETI Search
Protein Folding
Beal Conjecture
Scientific Computing
Computational Physics
Mersenne Prime Search
Computational Chemistry
Computational Astronomy
Computer Aided Design (CAD)
Computer Algebra Systems (CAS)

These are but a few examples of using Computer Science to solve problems in Mathematics and the Sciences (STEAM). In fact, many of these applications fall under the heading of Cluster Programming or Super Computing. These problems typically take too long to process on a single PC, so we need a lot more horse power. Next time, maybe we'll just use Titan!


Membership (alphabetic by first name):
CIS(theta) 2016-2017: 
DanielD(12), JevanyI(12), JuliaL(12), MichaelC(12) , MichaelS(12), YaminiN(12)

CIS(theta) 2015-2016: 
BenR(11), BrandonL(12), DavidZ(12), GabeT(12), HarrisonD(11), HunterS(12), JacksonC(11), SafirT(12), TimL(12)

CIS(theta) 2014-2015: 
BryceB(12), CheyenneC(12), CliffordD(12), DanielP(12), DavidZ(12), GabeT(11), KeyhanV(11), NoelS(12), SafirT(11)

CIS(theta) 2013-2014: 
BryanS(12), CheyenneC(11), DanielG(12), HarineeN(12), RichardH(12), RyanW(12), TatianaR(12), TylerK(12)

CIS(theta) 2012-2013: 
Kyle Seipp(12)

CIS(theta) 2011-2012: 
Graham Smith(12), George Abreu(12), Kenny Krug(12), LucasEager-Leavitt(12)

CIS(theta) 2010-2011: 
David Gonzalez(12), Herbert Kwok(12), Jay Wong(12), Josh Granoff(12), Ryan Hothan(12)

CIS(theta) 2009-2010: 
Arthur Dysart(12), Devin Bramble(12), Jeremy Agostino(12), Steve Beller(12)

CIS(theta) 2008-2009: 
Marc Aldorasi(12), Mitchel Wong(12)

CIS(theta) 2007-2008: 
Chris Rai(12), Frank Kotarski(12), Nathaniel Roman(12)

CIS(theta) 1988-2007: 
A. Jorge Garcia, Gabriel Garcia, James McLurkin, Joe Bernstein, ... too many to mention here!

Well, that's all folks,
A. Jorge Garcia

Applied Math, Physics and CS
2017 NYS Secondary Math PAEMST Nominee

Sage Ebay