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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

Personal Projects

Lepl parser for Python.

Colorless Green.

Photography around Santiago.

SVG experiment.

Professional Portfolio

Calibration of seismometers.

Data access via web services.

Cache rewrite.

Extending OpenSSH.

Last 100 entries

Half of Americans Think Climate Change Is a Sign of the Apocalypse; Saturday Surf Sessions With Juvenile Delinquents; Ssh, tty, stdout and stderr; Feathers falling in a vacuum; Santiago 30m Bike Route; Mapa de Ciclovias en Santiago; How Unreliable is UDP?; SE Santiago 20m Bike Route; Cameron's Rap; Configuring libxml with Eclipse; Reducing Combinatorial Complexity With Occam - AI; Sentidos Comunes (Chilean Online Magazine); Hilary Mantel: The Assassination of Margaret Thatcher - August 6th 1983; NSA Interceptng Gmail During Delivery; General IIR Filters; What's happening with Scala?; Interesting (But Largely Illegible) Typeface; Retiring Essentialism; Poorest in UK, Poorest in N Europe; I Want To Be A Redneck!; Reverse Racism; The Lost Art Of Nomography; IBM Data Center (Photo); Interesting Account Of Gamma Hack; The Most Interesting Audiophile In The World; How did the first world war actually end?; Ky - Restaurant Santiago; The Black Dork Lives!; The UN Requires Unaninmous Decisions; LPIR - Steganography in Practice; How I Am 6; Clear Explanation of Verizon / Level 3 / Netflix; Teenage Girls; Formalising NSA Attacks; Switching Brakes (Tektro Hydraulic); Naim NAP 100 (Power Amp); AKG 550 First Impressions; Facebook manipulates emotions (no really); Map Reduce "No Longer Used" At Google; Removing RAID metadata; New Bike (Good Bike Shop, Santiago Chile); Removing APE Tags in Linux; Compiling Python 3.0 With GCC 4.8; Maven is Amazing; Generating Docs from a GitHub Wiki; Modular Shelves; Bash Best Practices; Good Emergency Gasfiter (Santiago, Chile); Readings in Recent Architecture; Roger Casement; Integrated Information Theory (Or Not); Possibly undefined macro AC_ENABLE_SHARED; Update on Charges; Sunburst Visualisation; Spectral Embeddings (Distances -> Coordinates); Introduction to Causality; Filtering To Help Colour-Blindness; ASUS 1015E-DS02 Too; Ready Player One; Writing Clear, Fast Julia Code; List of LatAm Novels; Running (for women); Building a Jenkins Plugin and a Jar (for Command Line use); Headphone Test Recordings; Causal Consistency; The Quest for Randomness; Chat Wars; Real-life Financial Co Without ACID Database...; Flexible Muscle-Based Locomotion for Bipedal Creatures; SQL Performance Explained; The Little Manual of API Design; Multiple Word Sizes; CRC - Next Steps; FizzBuzz; Update on CRCs; Decent Links / Discussion Community; Automated Reasoning About LLVM Optimizations and Undefined Behavior; A Painless Guide To CRC Error Detection Algorithms; Tests in Julia; Dave Eggers: what's so funny about peace, love and Starship?; Cello - High Level C Programming; autoreconf needs tar; Will Self Goes To Heathrow; Top 5 BioInformatics Papers; Vasovagal Response; Good Food in Vina; Chilean Drug Criminals Use Subsitution Cipher; Adrenaline; Stiglitz on the Impact of Technology; Why Not; How I Am 5; Lenovo X240 OpenSuse 13.1; NSA and GCHQ - Psychological Trolls; Finite Fields in Julia (Defining Your Own Number Type); Julian Assange; Starting Qemu on OpenSuse; Noisy GAs/TMs; Venezuela; Reinstalling GRUB with EFI; Instructions For Disabling KDE Indexing; Evolving Speakers

© 2006-2013 Andrew Cooke (site) / post authors (content).

I Just Paid Taxes!

From: "andrew cooke" <andrew@...>

Date: Thu, 10 May 2007 21:25:12 -0400 (CLT)

I just paid my income tax for last month!  This is a major achievement -
I'm being paid in dollars by an American company, but am an English person
with permanent residency in Chile.  I think it went OK.  The process is:

- Mulesource cable me dollars
- Dollars arrive in the bank's account
- No-one tells me anything
- Eventually I go to the bank and ask
- The bank agrees that they have my money
- The bank transfers my money into a dollar fund under my name
  (this is the date on which I receive the payment, I believe)
- I record the payment in a little book of printed slips that I have
  (in duplicate) along with the day's dollar/peso conversion rate
- At some later I point I argue and plead and eventually get to transfer
  money from the dollar fund to my current account, in pesos, for a fee.
- Before 12 days after the start of the month after the month in which I
  receive the money(!) I go to http://www.sii.cl
- There I fill in form F29 as shown in the video at
  http://www.sii.cl/demos_autoasistencia/iva_f29/f29_sinmov_sin_atraso.htm
  giving the amount in pesos.
- That form calculates my tax (10%) and forwards me to my bank's web page
- At my bank's web page, I confirm payment.
- Next May I will enter my total earnings in another online web page and
  will receive, hopefully, a refund of some of what I have paid.

Cool or what?  Makes paying taxes a pleasure :o)

Andrew

Happy to be fined!

From: "andrew cooke" <andrew@...>

Date: Thu, 14 Jun 2007 21:27:35 -0400 (CLT)

So I forgot to pay my tax on time.  And I after looking at an old form of
Paulina's realised I filled in the wrong box on the form last time.

I managed to correct the previous month (same amount, so it seems OK). 
And then I submitted last month's and it automatically calculated my fine!
 The whole process is so stressful - you have no idea how alien another
country's tax system is until you try to pay - that just getting the fine
to come up correctly felt like a huge success...

For future record - it's 84 b, not 84 a (and you work out the 10% yourself).

Andrew

Easier Online Procedure

From: "andrew cooke" <andrew@...>

Date: Sun, 6 Apr 2008 20:45:29 -0400 (CLT)

Until now I have been paying my AFP (obligatory pensions) contribution in
person, filling in a yellow slip and a cheque, and queueing once a month
at a bank-like payment place.  I couldn't use http://www.previred.cl (I
thought) because they force you to pay ISAPRE (health) too, and I was (1)
paying that automatically through my bank and (2) paying a different
amount from that calculated by previred because it's a joint insurance
with Paulina.

But today I just worked out how to do everything online.

First, go to http://www.safp.cl/safpstats/stats/inf_afiliados/calcos.html
and calculate the costs.  That's only the administration charge, but they
display the "tope" (the upper limit, which I exceed, and I never know
exactly what it is, since it changes daily).  So add the charge to 10% of
the tope.

Then go to http://www.previred.cl and (once logged in) select the "direct
pay" button below the "usual" buttons.  This lets you pay just the AFP! 
So fill in the amount calculated above, and everything is OK (assuming
that the ISAPRE is paid automatically and tax is done through
http://www.sii.cl )

Andrew

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