Computer Science Semester 2 results

Final Uni results !

Math 1A                          HD
Math Fund B                    HD
Statistical Data Analysis   HD
Professional Skills            Dn

very happy with these !!!

Merry Xmas !!

heres a cool trick i learnt regarding infinite decimal numbers - 
ie
3.711711711711711711.....

let S = 3.711711711...
S= 3 + 711/1000 + 711/1000^2 + 711/1000^3....

see the pattern - the "ratio" is 1:1000 each time, each element in the series.

therefore 1000.S = 3711 + 711/1000 + 711/1000^2 + 711/1000^3....
1000.S - S = 3711- 3    (the infinite recurring decimals subtract and are removed from the picture)

999 S = 3708

S = 3708/999 or 412/111

pretty nifty !

second semesters exams just around the corner ! : O
this had been a really tough semester ! the work isn't too hard - but there is so much of it.

The math has been really fun.
Project/Team Management not so much since my team are a bunch of lazy ass teenagers...sheesh...

Statistics...its ok.

Here's a breakdown of the Maths we've covered.

* Proof of Pythagoras
* Trig ratios
* Natural Numbers, integers, Rational Numbers
* Proof root(2) is not a fraction
* Real Numbers as infinite decimals

* Intervals, closed and open notation
* Domain and range of a function
* Inverse trig functions
* The unit circle
* Elementary trig properties
* Periodicity of sin cos and tan

* Graphing of Functions
* Slope of a line between two points
* Average velocity for positions given in terms of time
* Instantaneous velocity defined as a limit.
* Derivatives, elementary calculus
* Polar coordinates
* Addition formulae for angles, double and half angle formulae

* Addition of two wave functions
* Modulus
* The Product Rule for differentiation of two functions
* The Chain Rule for Differentiation
* Trig identities and Simplifications
* Polynomials / RemainderTheorem
* Factorisation of Polynomials
* Completion of the square

* Leibniz Notation
* Implicit differentiation
* Differentiation of sin(x) and thus other trig ratios including powers and multiple angles
* Complex numbers, modulus of and argument of.
* Properties of modulus and complex conjugate of a complex number
* De Moivere's Theorem
* Square and Cube roots of complex numbers
* Relation to factoring polynomial functions


* Simple harmonic Motion

* Defn of natural log as the area under the graph of 1/x for x> 0

* graphing Exponential functions
* Decay / Half life

* Complex exponentials and their relation to trig functions

* Hyperbolic functions

* Derivatives of the inverse trig functions

* Local and Global maxima and minima, how to find them if they exist

* Vectors in R2 and R3 from both geometric POV and algebraic POV
* Length and dot product of vectors

* Angle between vectors, Orthogonality

* Parallel and perpendicular vectors

* Vector Cross Product

* Equations of lines and planes in R3

* Find a plane through 3 given non collinear points

* Row operations and simultaneous Equations

* Continuity on a point and on an interval.

* Max and min for continuous functions on closed bounding intervals

* Mean Value theorem, and consequence of a positive derivative 

* Rolle's Theorem as a special case

* Verbally posed max min problems

* Snell's Law

* Intermediate Value Theorem

* Approximate Solutions by repeated bi-sections

* Distance between two parallel lines.

* Indefinite integration - example of falling body under constant gravity

* Differential eqn's for Projectiles

* Geometric Sequence and its limit

* Summation

* Parametric curves in the plane

* Slope and equation of the tangent line

* Power Series

* Gregory Series

* Maclaurin Series

* Binomial Series

* Escape Velocity under the inverse square law of attraction

Semester 1 Final Results

Comp Fundamentals :     Distinction
Inf and Comm Tech  :     HD
CP1 (Java)               :     HD
Maths Fund A (1/2)  :     Credit

I was very surprised and happy with those !

1st Semester Exams - done !

I've just finished my exams for 1st semester computer science !
phew! at first i thought 'hey - this isnt that hard...'
but wow - there was alot of stuff to cover...

here's a general summary of topics covered so far...
some to a more or less introductory level...some in a bit more detail.

SUBJECT :Information and Communications Technology:
Essay writing refresher , Harvard Referencing
Networking Fundamentals
Networking Topologies
The Internet, history, technology , Packet Switching
Security
e-Business
Information Systems
Hardware Basics with focus on CPU's and Motherboards.
Operating Systems
Social Media overview / general social issues with IT.
MSOffice Suite.....errg...
Database Fundamentals
Unix  commands

Maths FundmentalsA
Logs
Linear Algebra
Functions and Graphs
Quadratics
Trigonometry

Programming 1 (Java)
Data Types / manipulation
OOP principles
Inheritance
Polymorphism
Recursion
Data Structures
Search Algortihms - linear and binary
Simple Graphics with Applets

Computing Fundamentals
History of Computing 
Algorithms
Hardware / Peripherals
Binary Functions 
Machine Cycles; Machine Code
Database Design
OOP principles
Software Design Principles 
3D Overview
AI

"It's official: Asia has just run out of IPv4 Addresses

Now will you take switching over to IPv6 seriously?"

DPI vs PPI

http://www.andrewdaceyphotography.com/articles/dpi/

some fantastic visuals !
http://www.csismn.com/F-L-U-X

great link , thanx kalman !

"A sandstone block built from lego, blending real objects with 3d print" (vimeo)

Greg Petchkovsky

link fixed:

https://vimeo.com/43442146

A nanosecond (ns) is one billionth of a second (10⁻⁹ s). One nanosecond is to one second as one second is to 31.7 years. - wikipedia

Homework...


The Pareto Principle:

"...software engineers have developed testing methodologies that improve the odds of revealing errors in software with a limited number of test. One of these is based on the observation that errors in software tend to be clumped. That is experience has shown that a small number of modules within a large software system tend to be more problematic than the rest. Thus by indentifying these modules and testing them more thoroughly, more of the system's errors can be discovered than if all the modules were tested uniformly. In the field of software engineering, the  Pareto principle states that results can often be increased most rapidly by applying efforts in a concentrated area..."


(''Pareto'' is in reference to the economist and and sociaologist Vilfredo Pareto 1848-1923, who observed that a small part of Italy's population controlled most of Italy's wealth.)


Glass-box testing as opposed to black-box testing are tests in which "...the tester is aware of the interior structure of the software and uses this knowledge when designing the test..."


Computer Science : An Overview 11th Edition , J Glen BrookShear , 2012.

Fourier Tansform Resources

http://homepages.inf.ed.ac.uk/rbf/HIPR2/fourier.htm

NASA !
http://idlastro.gsfc.nasa.gov/idl_html_help/Transforming_Between_Domains_with_FFT.html

Paul Bourke
http://paulbourke.net/miscellaneous/imagefilter/

"...We have some news to share with you about our plans for introducing fixes faster, but that will have to wait a month or so..." Autodesk.

Floating Point number and Parity Bit Nitti Gritti's

Floats http://steve.hollasch.net/cgindex/coding/ieeefloat.html http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html Parity Bits http://www.neurophys.wisc.edu/comp/docs/ascii/

quiet...

warning : This Blog will be very quiet while i get my Degree in Computer Science, I hope to post some houdini-university hybrid projects at some point - but for now, I just have to hit the books. :)

(rough) Web site up !

a quick and dirty website is up to host my reel...

www.danielphillis.com

this is subject to change...
a Reel break down and downloadble CV in PDF format are my next priorities....

4k TVs ?

Interesting article,
"Marketing pixels" and the myth of 4k

by John Galt

http://magazine.creativecow.net/article/the-truth-about-2k-4k-the-future-of-pixels