It may be square, but it's wondrous

Article Abstract:

The square root of -1, i, can be argued to be the key element which sets humanity today apart from the people who were responsible for the original seven wonders of the world. The concept of i was first formally introduced by Rafael Bombelli, an Italian mathematician, in the 16th century, but was not used properly until the 17th century. Complex numbers and i now permeate modern life, but still manage to retain an ethereal property, as they cannot really be expressed properly in writing.

History, Square root, Square roots

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Put away that Filofax. Pick up that palmtop. Get with it

Article Abstract:

Many people are finding that palmtop computers have considerable advantages over paper-based personal record-keeping systems. Palmtops are able to store a wide range of information, and have functions that cannot be obtained with a paper-based system. They can be updated very quickly, and the information in them can be easily copied onto a backup disk. Manufacturers of paper-based systems should now consider how they can compete in the era of increasing digitalization.

Electronic computers, Usage, Hand-held computers, Handheld computers, Personal digital assistants

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