THE RAND COLLECTION OF ILLUSTRATIVE APPROXIMATIONS
RAND CORP SANTA MONICA CA
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Loose leaf sheets that contain interesting and useful approximations to a number of the higher transcendental functions are discussed. A sample sheet is displayed, somewhat reduced photographically from its original notebook size. The approximations given are of both a practical and of an illustrative nature. The sheets of approximations give interesting information concerning the location of roots - points at which function and approximation agree - and the location of extremals - points at which the deviation between function and approximation is locally a maximum in an absolute or relative sense. The error curves that appear on each sheet gives an analytical approximation in a wide variety of typical cases of practical importance.
- Numerical Mathematics