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bio website angrycoders.com
location Calgary, Canada
age 39
visits member for 3 years, 6 months
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System Architect / Senior Software Developer in Calgary, Alberta. Consulting on various projects, mostly with a .Net or classic ASP background. I've been developing Web applications and Websites for over a decade now ranging from using a propietary markup and ISAPI extensions(C/C++) to Classic ASP(VBScript) to ASP.Net(C# 1.0/1.1/2.0/3.5/4.0/MVC) I enjoy solving puzzles such as Sudoku and mysteries. My previous work involves using various Agile practices,e.g. Scrum and pair-programming, on a CMS project within an IS department's web development group.

I enjoy sharing what I've experienced, learned or think may be worth sharing with the world.


2d
reviewed Approve suggested edit on How to find the 4th degree polynomial with given values at $0,1,2,3,4$?
2d
comment How to find the 4th degree polynomial with given values at $0,1,2,3,4$?
Couldn't you use the other 4 points to create 4 equations with 4 unknowns and then use basic row reduction to figure out a,b,c, and d?
Oct
17
revised Proof of: if $x^2+y^2=2xy$ then $x=y$
Fixed some minus signs and changed text to symbols
Oct
17
comment Existence of an integer satisfying this equation
If $a=c=d=2$ and $b=1$ then this doesn't have an integer solution for $N$ so there can exist some cases that won't have a solution though this is somewhat contrived.
Oct
14
comment Number of ways to park $10$ cars
Multiplied as you could consider a smaller number like suppose 3 spots with 2 Fords and a Dodge. There are only 3 possible combinations as wherever the Dodge is placed will force the 2 Fords to the other places whereas under your addition there would be 4 possibilities as it would be 3+1 instead of 3*1.
Oct
13
comment How many Binary numbers?
Those numbers that start with 000 and end with 111 are being counted twice which is something to correct.
Oct
13
comment Next term in sequence
answers.com/Q/… would be one explanation.
Oct
12
comment Prove that $10 | (n^a - n^b)$.
en.wikipedia.org/wiki/Fermat%27s_little_theorem would be my suggestion though this may be overkill in some classes.
Oct
12
comment I get two different answers on simple equation. What am I doing wrong?
@Joe, whenever one is going to divide an expression to solve an equation, there is a check to make sure that the division isn't by zero. Generally this is a rather straightforward check.
Oct
12
revised I get two different answers on simple equation. What am I doing wrong?
elaborated based on comment.
Oct
12
answered I get two different answers on simple equation. What am I doing wrong?
Oct
11
comment How to solve $0.5^{1200}\times (2^{1204})$?
$.5=2^{-1}$ would be my main hint.
Oct
6
comment Trying to understand binary number equation
If you remember place values in base ten of ones, tens, hundreds, thousands, etc. In base two this becomes ones, twos, fours, eights, etc. as each digit is raise to a power of two if present.
Oct
4
revised The meaning of “average annual compound rate”
Replacing equals with approximations
Oct
4
comment The meaning of “average annual compound rate”
Yes, precisely.
Oct
4
revised The meaning of “average annual compound rate”
Added lines interpreting the data.
Oct
4
comment The meaning of “average annual compound rate”
No, that would be the 9 year average annual return for 1996 to 2004 which isn't asked anywhere.
Oct
4
revised The meaning of “average annual compound rate”
elaborated to give the answer for b.
Oct
4
comment The meaning of “average annual compound rate”
In finance, usually average annual return is a geometric mean which is why the computation is a product and root instead of addition and division that would give a 9.0% return in the arithmetic case since one could just subtract the difference to get the average for the other 5 years.
Oct
4
answered The meaning of “average annual compound rate”