Sunday, March 7, 2010

The Tripos and us

The Tripos was a venerable Cambridge institution -- an exam that mathematics students took to get their degrees and perhaps earn a scholarship.

It was impossibly arduous. Four days of problem solving, a break and another four more days of backbreaking labour that even future exceptional mathematicians found impossibly difficult. Most of the time the problems required a certain quickness in ability and the use of tricks to solve within the given time period. Mere aptitude in mathematics was not enough. It was and perhaps still is considered amongst the most difficult math exams in the world. (Some of us in the Indian system have a faint notion of the kind of problems that were set - what we called the S. L. Loney type - a sphere spinning on a needle that is balanced on an ellipsoid that is dangling from a pendulum or some such absurdity).

There was a certain caste system amongst those who succeeded. In the first class, the topper was the Senior Wrangler, followed by Second Wrangler, Third Wrangler and so on. The second class were the Senior Optimes followed by the Third Class, the Junior Optimes (yes, this is sounding more and more like Asterix). The last of the Junior Optimes was called a Wooden Spoon because tradition dictated that he (yes, always a he then) be given, by his friends a wooden spoon (actually a huge malting shovel lavishly decorated and inscribed in Greek) which the poor fellow was expected to take, hoist on his shoulder and carry it and himself out of the hall.

Senior Wranglers were God-like figures with all the attendant myth and mythology that would spring up around them. However they were not necessarily the best mathematicians, but, it was believed, would become the most influential one. After all, the Tripos stressed a certain knack in in solving problems fast rather than mathematical aptitude. Most future famous physicists and mathematicians were not Senior Wranglers (J. E. Littlewood was one notable exception). James Clerk Maxwell, J. J. Thomson, William Thomson (later Lord Kelvin) were all Second Wranglers. G. H. Hardy was, to his great consternation a Fourth Wrangler, Bertrand Russell a Seventh Wrangler.

Since the Tripos was impossible to 'max' without adequate practice, a whole alternate system of education cropped up around it. These were the coaching classes. Private coaches, for handsome fees, would coach you, not in the subtleties of mathematics but in how to take the Tripos. They would pour over old exams, make useful notes for solving problems, give you hours of practice all for the single minded purpose of taking the Tripos -- what someone called codifying mathematical knowledge into neat bundles. (Yes, yes, I know, it's familiar, but do bear with me, dear reader). The workload for students who took these mind numbing coaching classes was prodigious. For them, attending their usual lectures was a luxury they could ill afford. According to the famous mathematician J. E. Littlewood, himself a Senior Wrangler, one had to spend two thirds of the time practising solving difficult problems against time. Students frequently ignored the course material, in order to concentrate on the Tripos and hence the coaching classes. Hardy himself was coached by the legendary R. R. Webb, a 'producer' of many Senior Wranglers.

G. H. Hardy's aim was to eventually change this whole mind numbing examination system. His famous statement was that examinations (any examination, not just the Tripos) were necessary but only as an absolute minimum standard to get a degree. "An examination can do little harm as long as its standard is low", was his credo, instead of students and their tutors exhausting themselves to turn a comfortable second to a marginal first.

Hardy, despite his influence, succeeded in only marginally changing the system. On his pushing, a degree candidate still took the Tripos but was ranked only as Wrangler, Senior or Junior Optime, reducing somewhat the merciless pressure that the exam had created. The system had clearly more inertia than Hardy had bargained for, and he finally gave it to these minor changes.

The Indian analogy is obvious. The JEE is perhaps as stultifying, as mechanical as the Tripos (is or was). It stresses little knowledge of or ability in the subject, mainly a quickness of intellect and an ability to be able to use tricks to solve problems in the given time period. That is where coaching classes come in. It has today reached a stage where even the smartest students would not clear the JEE with a high rank without the knowledge of certain mathematical tricks in their kitty. Eventually all problems, even JEE problems can be solved without such tricks, but the race against time precludes a slow and methodical approach to any problem.

The Tripos system did produce some great scientists though few from amongst the toppers. Can the JEE boast of that? The numbers here are negligible and the names that spring to mind (for obvious reasons I don't wish to enter into a controversy about contemporary names who could be considered 'great') are hardly in the world class category of the Tripos toppers. More often than not, they end up in management, becoming CEOs or VPs of companies and only rarely a distinguished academic. The JEE is not a passport to greatness, not even as much as the admittedly flawed Tripos system. It's perhaps time for a significant change in the approach to this examination system -- though something tells me that that is not going to happen anytime soon. (It's also not in the interest of the coaching class companies to see it change). Like the British system which we inherited, the inertia in our system is large enough to neutralise even the most dedicated revolutionary.

Acknowledgement: As a product of the Indian and American education systems, I have little or no direct knowledge of the British Tripos system. Most of the stuff above is based on reading the literature, mainly the beautiful and fascinating account of the system in Robert Kanigel's masterful biography of Srinivasa Ramanujan.

Sunday, February 7, 2010

David Hockney and iPhone Art

The iPhone has been a game changing device but this is a new one.

In his seventies now, David Hockney has created a new kind of art using a iPhone app called 'Brushes' to draw on his iPhone. The drawings are done exclusively using his thumb and

Over the past six months, Hockney has fashioned literally hundreds, probably over a thousand, such images, often sending out four or five a day to a group of about a dozen friends, and not really caring what happens to them after that. (He assumes the friends pass them along through the digital ether.) These are, mind you, not second-generation digital copies of images that exist in some other medium: their digital expression constitutes the sole (albeit multiple) original of the image....
Lately he has been concentrating on the summer dawn and as he says:
After all, what clearer, more luminous light are we ever afforded? Especially here where the light comes rising over the sea, just the opposite of my old California haunts. But in the old days one never could, because, of course, ordinarily it would be too dark to see the paints; or else, if you turned on a light so as to be able to see them, you'd lose the subtle gathering tones of the coming sun. But with an iPhone, I don't even have to get out of bed, I just reach for the device, turn it on, start mixing and matching the colors, laying in the evolving scene...

Hockney, who has carried small notebooks in his pockets since his student days, along with pencils, crayons, pastel sticks, ink pens, and watercolor bottles—and smudged clean-up rags—is used to working small, but he delights in the simplicity of this new medium:

It's always there in my pocket, there's no thrashing about, scrambling for the right color. One can set to work immediately, there's this wonderful impromptu quality, this freshness, to the activity; and when it's over, best of all, there's no mess, no clean-up. You just turn off the machine. Or, even better, you hit Send, and your little cohort of friends around the world gets to experience a similar immediacy. There's something, finally, very intimate about the whole process.

More here, including examples of his work and a slideshow.

Friday, January 29, 2010

God, Haiti, Robertson and all that

If you thought Pat Robertson was over the top (as always) believing the Haitians deserved the earthquake for their pact with the devil, think again. Dawkins in fact thinks that Robertson, if anything, is truer to the Christian faith and theological traditions than all the 'moderate' theologians, priests, preachers and others who are trying to disown him. Classic Dawkins' fire and brimstone. Love it....

Where would Hinduism stand on this....I guess you are just reborn as a cockroach for your sins rather than flattened by an earthquake. Wonder which is worse....

Wednesday, January 20, 2010

Jyoti Basu -- a mixed legacy

Most newspapers and not just the Hindu have gone overboard in the coverage of Jyoti Basu's life and times, stressing mostly the positive features of his years as Chief Minister. Mr Basu's legacy is clearly mixed. After the initial years of land reforms and Panchayati Raj, the CPI(M) and Mr. Basu seemed to have lost their bearings allowing Bengal to fall into a morass, from which even today it finds it difficult to escape. Industry fled as trade unions became all powerful, infrastructure collapsed, the education system was not just politicised, it took a major hit with the decision to teach only Bengali (resulting in large numbers of students unable to function in a real and active world outside Bengal where Bengali would lead them nowhere). The poor work culture of Bengal today is another legacy of Mr. Basu's years as a Chief Minister. Three articles which try to present another side to his legacy, one very different from the hagiographical sketches that have appeared in the mainstream press:

As a recent settler in Kolkata told me -- Jyoti Babu had competence but no vision, Buddha has vision but no competence, the future Chief Minister has neither -- that is the tragedy of Bengal!

Saturday, January 16, 2010

Fond memories of a no longer popular writer

I recently chanced upon an article on the English children's writer Enid Blyton, by Amy Rosenberg. And suddenly the floodgates opened and I felt myself scrolling through my childhood years with Blyton. And along with them came memories of the years of growing up in Delhi, my family and friends from school and my vivid memories of devouring Blyton's books, so much so, that my parents warned me they couldn't possibly afford to buy books at that rate. But buy them they did gradually filling up all the space available on my bookhelf. In those days Enid Blyton was available in Armada Paperbacks which would barely last one reading. My father would help me stitch them together again so that I could read them a second time which I frequently did when I didn't have a new one to start on. And I had them with me for well over 30 years till we needed to move them to Chennai and they proved too much for our small Chennai flat.

My childhood memories date from my nursery and kindergarten years and as far back as I remember, my reading habits began with Blyton and her Noddy books, graduating from there to the Famous Five, The Find Outers, the Adventure stories, St. Claire and Mallory Towers (the last two were girl school stories but were devoured equally by boys and girls) to fairy stories involving wizards, fairies and goblins. Not only did the kids in them have a whale of a time, they ate what to me seemed like scrumptious food - scones, toasted muffins, potted meat sandwiches, ham and eggs. It helped of course that I didn't really know about any of these but those kids had so much fun eating. By the time of my senior years in high school I had moved to another fictitious British world -- that of Wodehouse and also of Dickens and many others. But my years of Blyton have always seemed special -- perhaps because it is where I picked up a love of books and a love for reading.

Enid Blyton's reputation, has, in the recent more complicated politically correct world, fallen on hard times. She has been accused of racism (think gollywogs), class consciousness (an unfair charge since most of the kids in her stories belonged squarely in the middle class and often reflected the difficult post war years in Britain), a bias against foreigners (Frank Richards shared this trait with her, a fact for which Orwell once chided him in one of his columns only to have the wind taken out of his sails by being told by Richards that foreigners are funny -- as in weird! ). The present generation has no use for her and her books, while still available, don't sell anywhere like they used to a couple of decades ago. Her books have been psychoanalyzed to death, mostly to their detriment and overall, she no longer has the same fan following.

But for a child growing up in Delhi in the 60s, with the British having left barely 20 years earlier, the terrific adventures of a bunch of spunky kids from the mother country, with no adults to supervise them, were just plain fun and I couldn't get enough of them. And I think this was true of many children of my generation, growing up in a similar milieu.

I can see many of my colleagues, and, I dare say, friends curling their upper lip, sneering at such juvenile reading habits. For them, Reading is for Improving the Mind and Expanding ones' Horizons. Thus they Read Socio-Political History of the Indian Ocean Islands or Contemporary Relevance of Aurobindo Ghosh, or Human Development and the Structure of Language. But while we have all moved on from Blyton to Dickens and thereafter to Marquez and Rushdie all the way to the Ishiguros and Murakamis, the habit of reading and the love of books I owe to a bunch of five plucky kids and a dog who set out with their picnic hamper to solve yet another mystery or get involved in yet another adventure in a far off island.

Friday, January 15, 2010

Partial Solar Eclipse Chennai 15.1.10

On Earth

as it is in Heaven

(Part credit to Sanatan Digal and Vani Vemparala).

Many more here and here.

Nice little haul -- a Total Solar Eclipse in July 2009 and a Partial one in January 2010.

Wednesday, January 13, 2010

Auto drivers and honesty

Living in Chennai one tends to forget that auto drivers and (dis)honesty are not in any way related. Though I have a theory of natural selection which says that auto drivers in Chennai have been over charging for so long that successive generations with specimens who could have been honest could not possibly survive and have got naturally weeded out along with their 'honesty' genes. This kind of genetic selection can of course be social rather than literal.

The unique perfidy of Chennai auto drivers was brought back to me forcefully by two incidents during my recent travels. In Pune I took an auto rickshaw back from Sancheti hospital. At the destination, the driver kept staring at his meter card (in Pune the meter reading needs to be converted to money units) and after some hesitation asked me how much I had paid on the way out. I told him it was Rs. 24 whereupon he said his meter was showing Rs 45 which he noticed was way too high for this distance. Of course in one place he had had to take a detour from the way in because of a one-way street, so we agreed to Rs. 30 and he was very happy.

In Ahmedabad, again recently, I was taking an auto rickshaw to the Physical Research Laboratory and wasn't sure of the way. The driver told me he would prefer if I gave directions, though he could find his way by asking people. However, in that case there was the danger that he wouldn't be taking the shortest route and I would end up paying more than the standard amount. Finally he did find his way and the fare was approximately what it would have been anyway via the shortest route.

In the two decades or so I have been in Chennai, I have encountered exactly two honest auto drivers (yes, two) by which I mean they agreed to go by the meter. This is of course no longer possible since meters have not been calibrated in a long while and most of them don't work anyway. A distance of about a kilometer typically costs anything between Rs. 25-30 which must surely count among the most expensive for this mode of transport. In a gesture of abject helplessness, the police here have now decided that auto rickshaw drivers who recalibrate their meters and use them honestly will carry a red (or was it green) label to signify their existence, in the fond hope that it will shame the others into following suit. How 'fond' can hope be?