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-
- Following is a mathematical romance which I came
- accross years ago.
-
- _________________________________________________________
-
- Wherein it is related how that Polygon of Womanly Virtue,
- your Polly Nomial (our heroine) is accosted by that Notorious
- Villain Curly Pi, and factored (oh, horror).
-
- The tragedy of Polly Nominal
- ----------------------------
-
- Once upon a time ( 1/T ), Pretty Polly Nomial was strolling
- accross a field of vectors when she came to the boundary of a
- singularly large matrix. Now Polly was convergent and her mother
- had made it an absolute condition that she never enter such an
- array without her brackets on. Polly, however, who had changed her
- variables that morning and was feeling particularly badly behaved,
- ignored this condition on the basis that it was insufficient, and
- made her way amongst the complex elements. Rows and columns closed
- in from all sides. Tangents approached her surface. She became tensor
- and tensor. Quite suddenly, two branches of a hyperbola touched her
- at a single point. She oscillated violently, lost all sense of
- directrix, and went completely divergent. As she reached a turning
- point, she tripped over a square root that was protruding from the
- erf and plunged headlong down a steep gradient. When she rounded
- off once more, she found herself inverted, apparently alone,
- in a non-Euclidian space.
-
- She was being watched, however. That smooth operator,
- Curly Pi, was lurking innerproduct. As his eyes devoured her
- curvilinear coordinates, a singular expression crossed his face.
- He wondered, was she still convergent? He decided to integrate
- improperly at once.
-
- Hearing a common fraction behind her, Polly rotated and
- saw Curly Pi approaching with his power series extrapolated.
- She could see at once by his degenerate conic and dissipative
- terms that he was bent on no good.
-
- "Arcsinh," she gasped.
-
- "Ho, ho," he said. "What a symmetric little asymptote
- you have. I can see your angles have a lot of secs."
-
- "Oh, sir," she protested, "keep away from me. I haven't
- got my brackets on."
-
- "Calm yourself, My Dear," said our Suave Operator.
- "Your fears are purely imaginary."
-
- "I, I," she thought, "perhaps he's not normal but
- homologous."
-
- "What order are you?" the Brute demanded.
-
- "Sixteen," replied Polly.
-
- Curly leered. "I suppose you've never been operated on."
-
- "Of course not," Polly replied quite properly.
- "I'm absolutely convergent."
-
- "Come, come," said Curly, "Let's off to a decimal
- place I know and I'll take you to the limit."
-
- "Never," gasped Polly.
-
- "Abscissa," he swore, using the vilest oath he knew.
- His patience was gone. Coshing her over the coefficient with a
- log until she was powerless, Curly removed her discontinuities.
- He stared at her significant places, and began smoothing out her
- points of inflection. Poor Polly. The algorithmic method was now
- her only hope. She felt his hand tending to her asymptotic limit.
- Her convergence would soon be gone forever.
-
- There was no mercy, for Curly was a heavyside operator.
- Curly's radius squared itself; Polly's loci quivered. He
- integrated by parts. He integrated by partial fractions. After
- he cofactored, he performed rungecutta on her. The complex beast
- even went all the way around and did a contour integration.
- Curly went on operating until he had satisfied her hypothesis,
- then he exponentiated and became completely orthogonal.
-
- When Polly got home that night, her mother noticed that
- she was no longer piecewise continuous, but had been truncated
- in several places. But is was too late to differentiate now. As
- the months went by, Polly's denominator increased monotonically.
- Finally, she went to the L'Hopital and generated a small but
- pathological function which left surds all over the place and
- drove Polly to deviation.
-
- The moral of our sad story is this:
-
- ' If you want to keep your expressions convergent,
- never allow them a single degree of freedom . . .'
-
- *** EOF
-