UNDER THE DOUBLE INTEGRAL Once upon a time, pretty Polly Nomial was strolling across a feild of vectors when she came to the edge of a singularly large matrix. Now Polly was convergent and her mother had made it an absolute condition that she must never enter such an array without her brackets on. Polly, however, who had changed her variable that morning and was feeling particularly badly behaved, ignored this condition on the grounds that it was insufficient and made her way among the complex elements. Rows and columns enveloped her on all sides. Tangents approached her surface. She became tensor and tensor. Quite suddenly three branches of a hyperbol 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 which was protruding from the erf and plunged headlong down a steep gradient. When she was differenciated once more, she found herself apparently alone in a non-euclidean space. She was being watched however. That smooth operator, Curley Pi, was lurking inner product. As his eyes devoured her curvilinear co-ordinates a singular expression crossed his face. Was she still convergent he wondered. He decided to integrate improperly at once. Hearing a vulgar fraction behind her, Polly turned round and saw Curly Pi approaching her with his power series extrapolated. She could see at once, by his degenerate conic and his dissipative terms, that he was bent on no good. "Ho, ho," he said, "What a symmetrical little polynomial you are. I can see youre absolutly bubbling over with secs." "Oh, Sir," she protested, "keep away from me, I havent got my brackets on." "Calm yourself, my dear," said the suave operator, "your fears are purely imaginary." "I, I," she thought, "Perhaps he is homogenous then." "What order are you ?" the brute demanded. "Seventeen, " replied Polly. Curly leered, "I suppose you have never been operated on yet ?" "Of Course not," replied Polly indignantly, "I'm absolutely convergent." "Come, come" said Curly, "Lets off to a decimal place I know and I'll take you to the limit." "Never," gasped Polly. "BODMAS," he swore using the vilest oath he knew. His patience was gone. Coshing her over the the coefficient with a log until she was powerless, Curly removed her discontinuities. He stared at her points of inflexion. Poor Polly! All was up! 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. He integrated by parts, he integrated by partial fractions. The complex beast even went all the way round and did a contour integration. What an indignity. To be multiply connected on her first integration. Curly went on operating until she was absolutely and completely orthogonal. When Polly got home that evening, her mother noticed that she had been truncated in several places. But it was too late to differenciate now. As the months went by, Polly increased monotonically. Finally she generated a small but pathological function, which left surds all over the plane until she was driven to distraction.