Nadodiyin Pulambal

A Wanderer Gripes

Archive for December, 2007

Closure! Closure! Closure – Argh :-/

Posted by kovaiputhalvan on December 26, 2007

Argh. Much against the ministrations of 1-cyclopropyl-6-fluoro-4-oxo-7-piperazin-1-yl-quinoline-3-carboxylic acid, N-(4-Nitro-2-phenoxyphenyl)methanesulfonamide and the other things that the Doctor prescribed, I’m not asleep yet. Well, in a little while I will be – but I need to get this rant out of my system before I join company with Morpheus. I would also like to rant about the brainless bastards in the neighbourhood who believe in celebrating religious (and other) occasions by unleashing a high-decibel Himesh Reshammiya assault that drowns out the sound of everything else. I’ll save that for later, however.

Warning: I am mathematically illiterate, more or less.

I was idly reading through my ancient copy of Hoffman & Kunze (finally!), and exercising my ageing grey cells with some of the exercises, when something got me worried. There was one exercise (a trivial one, going by what I’d scribbled in the margin ages ago) that required the reader to prove that every field of characteristic zero contained a copy of the rational number field. Now, this is trivial to prove if the definition of a field includes the property of closure – namely, \forall a, b \in \mathbf{F}, (a + b) \in \mathbf{F}, (a . b) \in \mathbf{F}. (It does, by the way.). The trouble was, I’d neglected to read through the first page-and-a-half in Chapter 1 of H&K properly, and was left thinking that a field need not necessarily have closure. I wasted a day in thinking of ways to prove the damn thing without assuming closure, before I came to the conclusion that it was impossible. I then did what I should have done two days ago – sieved through the text with a fine tooth-comb to discover that H&K indeed mention closure, but not in so few words.

This is the kind of stupid mistake that would make a professional mathematician throw up upon hearing of it. Right now, I feel like hitting myself on the head with a stick. Or maybe a heavy large-print hardbound copy of H&K. One of the greatest regrets that I have is not taking up RVR’s linear algebra course – in hindsight, perhaps it was just as well – my being a student in his class would’ve probably given the poor man a coronary.

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TV isn’t totally dumb :)

Posted by kovaiputhalvan on December 26, 2007

Mini-vacation extended by a day. Came down with a bad cold and associated problems. I didn’t want to pass it on to my better half, so visited the doctor and got prescribed a ton of stuff that’s going to make me sleep like a log. So here’s a quick post before I hit the sack.

A friend of mine had some trouble with his Cable-TV connection. He thought he knew what the matter was – to confirm, he posted a question on comp.dsp. An interesting conversation followed. To cut a long story short, he found that his original guess was as far off the mark as we are from Proxima Centauri, and he learned a lot more about Cable TV than he cared for. There’s more to TV than just the idiot box, or so it would seem :)

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Links for Today

Posted by kovaiputhalvan on December 25, 2007

Argh. Last day of mini-vacation. The title should really read “Link (singular) for today”.

I’ve become an instant Jai Arjun Singh fan.

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Saved!

Posted by kovaiputhalvan on December 24, 2007

By the skin of my teeth, or however it is that the saying goes.

My better half had expressed her desire to learn that old game which involves thirty-two wooden pieces on an 8×8 wooden board. Not having the requisite board and pieces at hand, I proposed that I install the appropriate software on my laptop for her pleasure, instead. Having thus paved the way for the disaster that followed, I proceeded to weigh my options. Good old Xboard was too plain, I thought. Instead, I wanted to try out the jazzy new Knights, KDE’s chess frontend. The only hitch was, I was running a pretty old KDE – KDE 3.5.5, and Knights wanted 3.5.7 instead. No hassle, I thought. I then tried a pkgsrc pkg_add -uu on KDE *while* I was running KDE, and all hell broke loose…

To make matters worse, I discovered that I’d not saved a copy of the pkgsrc tree from which I’d installed all my packages, having preferred to install the binaries directly from a pkgsrc server. The aforementioned server had also ditched the said binaries, them being too old to keep. Whatever was available on the server wouldn’t install on my box, thanks to there being unmet dependencies. To fix the damn dependencies, I’d have to reinstall just about everything on my box. The pain involved in doing so made my head go woozy. I would have gone ahead – had it not been for the realization that doing so would result in a hefty internet bill as well.

Around 4-odd hours of banging my head on the wall, and I’m now without KDE. I somehow managed to get Windowmaker installed and running, and thankfully all KDE apps work – it’s just that I’m unable to start KDE itself. I don’t miss KDE’s eye candy much, WMaker is far more lightweight. Now I need to figure out exactly what went wrong – and how to fix it. Till then, I have WMaker and all the other KDE apps that I really need (like Konsole, Konqueror, Korganizer and Kstars. Kstars is irreplaceable, I’d be more or less heartbroken without Konsole – though xterm compiled with the right options actually would do in a pinch. Konqueror I like because I can make it understand hjkl, and Korganizer I need at work. I HATE Outlook.).

Of course, I *could* have survived at work with just twm and xterm – could’ve shipped the eye-candy intensive shit to Windows boxes elsewhere at work, and rdesktop’d to them – but that would’ve been painful. Damn this corporate-policy-mandates-windows crap. If it hadn’t been for Outlook, I wouldn’t have tried to install KDE in the first place. Oh well.

Moral of the story? Start hacking away at pkgsrc, K – you’re using it too often and have started to stretch it to its limits.

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(With apologies to Carl Sagan,) Bright Blue Dot

Posted by kovaiputhalvan on December 22, 2007

In a previous life, about a year or so ago, I hitched a ride home from work with my then boss. The four-wheeled steed that he rode was this incredibly sexy 6th generation silver grey Mitsubishi Lancer. He also happened to be the kind of guy who would just as easily open the car’s bonnet, press down on the clutch, crane his neck through the open window and figure out if there was play in the clutch. I’m digressing, as usual. The high point of the ride was Kyril Bonfiglioli’s Mortdecai Trilogy, read by someone with the right kind of clipped British accent, who also made all the right kind of funny noises at all the right times. This, announced my boss with much satisfaction, was how he managed to maintain his calm in the face of the suicidal manic rush that was traffic on Pune roads.

Cut back to the near past. I learned to drive around six months ago, and promptly bought myself a silver-grey Swift (on hire-purchase, I hasten to add – lest you think I’m related to Croesus). Even though the Swift came with a competent Blaupunkt and four reasonably good Sony speakers, I refrained from using these weapons of auditory destruction while I drove, much to the consternation of my passengers. This arrangement was simply because the audio distracted me from the road, consequently causing my blood pressure to spray out of my ears, rather than having the opposite effect. My musical better half, a much better driver than I ever could be, always drove with the music on. I never could understand how the other folks managed to do it. I thought back to that ride from another life, and shook my head in incomprehension.

And now we are at the present. A few minor dents, scratches and scraps later, I had acquired The Knowledge (so there, London Cabbies), and now consider myself a reasonably competent driver, though I occasionally have trouble half-clutching my way out of a really long signal. And so it was that I found myself on the road from work to home one evening last week. It was misting lightly, and I had the windows rolled up, and the blower on. It struck me that the interior of the car could do with some cheering up. As if by reflex, my left hand snaked its way towards the Blaupunkt [1] on the Blaupunkt, and switched on the radio, hoping to catch something other than the Hindi trash that most radio stations in Bangalore seem to belt out. And what a pleasant surprise it was that awaited me! Intelligent machine-creature that the Blaupunkt was, its PLL tuner found its way to Bangalore AIR’s Amritavarshini-Sangeethavahini on 101.3 MHz – and the interior of my Swift was drowned in Balamurali’s incomparable voice rendering Sundari Ni Divya Roopamu. On any ordinary day, Kalyani would be my favourite Raga, with Lalitha/Vasantha being a close second-third tie. What more could I ask for to cheer me up on a grey rainy evening, my favourite singer singing my favourite raga? And thus it was that I began to appreciate the presence of the Blaupunkt on my dashboard. Like Twoflower’s Luggage, it always seems to know what I need. The other day, I was about to pull my window down and yell at a biker who’d cut across my path from the left when Radio Indigo kindly belted out one of my long-lost favourites:


Now this life that we live in
It’s so wrong
Shout out the window
Do you know that
There is nothing worse than a man-made man
Still there’s nothing worse than a foolish man, hey

Virtual insanity is what we’re living in
Yeah, it is alright

Oh, Jamiroquai. They were interesting times, the mid- to late- ’90s. Memories came flooding back, most of them pleasant. Now, I can hardly think of driving without the Blaupunkt belting out something pleasant. The thoughtfully placed hollow in front of the gearshift is now occupied by half a dozen CDs, ranging from Beethoven’s 9th to Santana to L Subramaniam. And I couldn’t agree with my ex-Boss more about facing traffic with the music, instead of the other way around. (OK, in his case it wasn’t music, but an audiobook – big deal.). Once in a while, I do let Hindi trash waft through the cabin – especially when my better half is with me, or if she’s driving. Truth to tell, not all of it is trash. I particularly like R. D. Burman’s seventies pieces, the stuff from Bluffmaster, and recently, my better half was as surprised as I was when I caught myself swaying to the beats of Heyyy Babyyyy and wondered how I would wash this sin off me. Thinking out loud, is it some kind of rule that English Titles in Hindi Movies always have to be misspelled so badly as to make the reader cringe?

I can hardly end this piece without mentioning the dream that I had last night – that I was driving one of those heavy transport trucks, chasing the insane moron who had left his mark on my bumper – with a Blaupunkt in the cabin playing – you guessed it, Enter Sandman.

Aferthought

I got the bumper fixed yesterday. And Amritavarshini-Sangeethavahini on Noora Ondu point Mooru Megahertz is a national treasure, I get my fix of Carnatic/Hindustani if I’m driving after six in the evening.

—-

[1] Blaupunkt – from German Blau meaning Blue, and Punkt, Dot/Point. To illustrate, 2.2 would be zwei punkt zwei. The main control also happens to be a big blue dot. The name has an interesting history – the company was founded in 1923 or so as Ideal. The equipment they made was subject to random quality checks, and the ones that were QC-inspected would be marked with a blue dot of paint. It so happened that people were especially fond of the stuff with the blue dots, and used to ask for them in particular – and then a lightbulb must have flashed above somebody’s head, and the rest is more or less history. Now, I have no idea as to the truth behind this story – it’s something I heard in a Quiz ages ago, and like most things you get to know in a quiz, it’s probably true, but you never know. I miss Chuck.

Posted in Humour, Music | Leave a Comment »

Links for Today

Posted by kovaiputhalvan on December 22, 2007

Some idle surfing today yielded these two awesome links. Gleaned both of them off God Plays Dice, which is itself an awesome blog :) :

Walter Lewin’s Physics Lectures

The Secret Blogging Seminar.

Wow.

Posted in Math | Leave a Comment »

Posted by kovaiputhalvan on December 21, 2007

A mini vacation, at last. I’m not going to think of that ugly four-letter word called work for the next five days (today included). Oh well, if wishes were horses… okay, I *do* have to think of work, at least once tomorrow morning when I’m obligated to check my email to see if – WTF, the hell with it.

I’d been waiting for this short break for some time now. I wanted some time to curl up with my ancient copy of Hoffman & Kunze, with Halmos on the side. I have no idea if this will happen, however. Not today, anyway. Today I laze, more or less.

As I was giving in to a little uncertainty as to exactly *which* book I wanted to curl up with, I chanced across this line in a preface:

Classroom lectures are inherently inefficient. If the pace is slow enough to allow comprehension as the lecture is delivered, then very little can be covered. If the pace is fast enough to allow decent coverage, there will unavoidably be large gaps. Thus the student must depend on the textbook, …

If only *some* of the folks whose classes I took had had such consideration. Oh never mind.

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Posted by kovaiputhalvan on December 15, 2007

The holiday season, ’tis approaching. Why does an atheist care about these religious occasions, you ask? Oh well. The morons in far-off California who decide just how miserable my workday can be will be off on holiday. YAY. Pity they’ll be off for only a week.

Have been desperately searching high and low for Santana’s Dance, Sister Dance. That’s about the one song missing from my personal best-of-santana collection. Someday – soon.

Am off now. Be back in about a week’s time when the holiday season starts. Four days of work – I guess that should be OK.

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