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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.

C-ORM: docs, API.

Last 100 entries

Why Information Grows; The Blindness Of The Chilean Elite; Some Victoriagate Links; This Is Why I Left StackOverflow; New TLS Implementation; Maths for Physicists; How I Am 8; 1000 Word Philosophy; Cyberpunk Reading List; Detailed Discussion of Message Dispatch in ParserCombinator Library for Julia; FizzBuzz in Julia w Dependent Types; kokko - Design Shop in Osaka; Summary of Greece, Currently; LLVM and GPUs; See Also; Schoolgirl Groyps (Maths); Japanese Lit; Another Example - Modular Arithmetic; Music from United; Read Agatha Christie for the Plot; A Constructive Look at TempleOS; Music Thread w Many Recommendations; Fixed Version; A Useful Julia Macro To Define Equality And Hash; k3b cdrom access, OpenSuse 13.1; Week 2; From outside, the UK looks less than stellar; Huge Fonts in VirtualBox; Keen - Complex Emergencies; The Fallen of World War II; Some Spanish Fiction; Calling C From Fortran 95; Bjork DJ Set; Z3 Example With Python; Week 1; Useful Guide To Starting With IJulia; UK Election + Media; Review: Reinventing Organizations; Inline Assembly With Julia / LLVM; Against the definition of types; Dumb Crypto Paper; The Search For Quasi-Periodicity...; Is There An Alternative To Processing?; CARDIAC (CARDboard Illustrative Aid to Computation); The Bolivian Case Against Chile At The Hague; Clear, Cogent Economic Arguments For Immigration; A Program To Say If I Am Working; Decent Cards For Ill People; New Photo; Luksic And Barrick Gold; President Bachelet's Speech; Baltimore Primer; libxml2 Parsing Stream; configure.ac Recipe For Library Path; The Davalos Affair For Idiots; Not The Onion: Google Fireside Chat w Kissinger; Bicycle Wheels, Inertia, and Energy; Another Tax Fraud; Google's Borg; A Verion That Redirects To Local HTTP Server; Spanish Accents For Idiots; Aluminium Cans; Advice on Spray Painting; Female View of Online Chat From a Male; UX Reading List; S4 Subgroups - Geometric Interpretation; Fucking Email; The SQM Affair For Idiots; Using Kolmogorov Complexity; Oblique Strategies in bash; Curses Tools; Markov Chain Monte Carlo Without all the Bullshit; Email Para Matias Godoy Mercado; The Penta Affair For Idiots; Example Code To Create numpy Array in C; Good Article on Bias in Graphic Design (NYTimes); Do You Backup github?; Data Mining Books; SimpleDateFormat should be synchronized; British Words; Chinese Govt Intercepts External Web To DDOS github; Numbering Permutations; Teenage Engineering - Low Price Synths; GCHQ Can Do Whatever It Wants; Dublinesque; A Cryptographic SAT Solver; Security Challenges; Word Lists for Crosswords; 3D Printing and Speaker Design; Searchable Snowden Archive; XCode Backdoored; Derived Apps Have Malware (CIA); Rowhammer - Hacking Software Via Hardware (DRAM) Bugs; Immutable SQL Database (Kinda); Tor GPS Tracker; That PyCon Dongle Mess...; ASCII Fluid Dynamics; Brandalism; Table of Shifter, Cassette and Derailleur Compatability; Lenovo Demonstrates How Bad HTTPS Is; Telegraph Owned by HSBC; Smaptop - Sunrise (Music)

© 2006-2015 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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