Showing posts with label mathematical intuition. Show all posts
Showing posts with label mathematical intuition. Show all posts

Tuesday, September 13, 2011

And now for a break from serious discussion

I would like to imagine that this could not happen in a modern roundtable, but it is just too close to reality:

Imagine a host talking to a panel of four pundits about someone about to roll a 6-sided die.

Host: What's your prediction for the big dice roll?

Judy: Well, Jim, I've knocked on thousands of doors in this province, and families everywhere are telling me the same thing. They like the number 1, so I expect it to do really well.

Bill: Remember, the big dice roll is taking place on a Sunday after church, so the smart money is on 3, the trinity. We all remember Easter Sunday 1985 when a three was rolled three consecutive times. History is on the side of 3.

Jim: Look at the data. An even number has come up on 9 of the last 13 rolls. You have to play the hot hand on this one and go for 2, 4, or 6.

Alice: I agree with Jim's data, but all that means is that odd numbers are due. Judy is right that 1 is the trendy pick, but I really like 5 as a dark-horse candidate.

[Off-screen a mathematician is sobbing].


And, I suppose, a casino operator is gloating . . .

Saturday, October 16, 2010

Benoît Mandelbrot (1924 - 2010) and Education Reform

From A maverick's apprenticeship:
It was then and there that a gift was revealed. During high school and the wandering year and a half that followed, I became intimately familiar with a myriad of geometric shapes that I could instantly identify when even a hint of their presence occurred in a problem. “Le Père Coissard,” our marvelous mathematics professor, would read a list of questions in algebra and analytic geometry. I was not only listening to him but also to another voice. Having made a drawing, I nearly always felt that it missed something, was aesthetically incomplete. For example, it would improve by some projection or inversion with respect to some circle. After a few transformations of this sort, almost every shape became more harmonious. The Ancient Greeks would have called the new shape “symmetric” and in due time symmetry was to become central to my work. Completing this playful activity made impossibly difficult problems become obvious by inspection. The needed algebra could always be filled in later. I could also evaluate complicated integrals by relating them to familiar shapes.

I was cheating but my strange performance never broke any written rule. Everyone else was training towards speed and accuracy in algebra and reduction of complicated integrals; I managed to be examined on the basis of speed and good taste in translating algebra back into geometry and then thinking in terms of geometrical shapes.

Where did my gift come from? One cannot unscramble nature from nurture but there are clues. My uncle lived a double life as weekday mathematician and Sunday painter. My gift for shapes might have been destroyed, were it not for the unplanned complication of my life during childhood and the War. Becoming more fluent at manipulating formulas might have harmed this gift. And the absence of regular schooling influenced many life choices, but ended up not as a handicap but as a boon.
I realize we can't have an educational system focused entirely on the occasional Mandelbrot, but I can't help but wonder how the great man would have fared in the rigid, metric-driven system we're headed toward.

(also posted at Education and Statistics)