Sunday, February 08, 2009

Let Me Explain Why I Haven't Ordered This T-Shirt

My first impulse upon seeing this T-shirt at Snorg Tees was to click "order." Who doesn't enjoy jokes at the expense of irrational and imaginary numbers? Not me.

Here's the problem: √-1, a.k.a. i, has no business telling π to "be rational" because i is no more rational than π is.

By definition, a rational number is any number that can be expressed as the ratio of two integers. Integers, which are real numbers, don't tend to have imaginary quotients. You find me a ratio of two integers equal to √-1 and I'll buy that shirt.

My $18.95 should be safe.


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