Approximation method for series expansion of input function and system using the same
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United States of America Patent
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Jan 22, 2008
Grant Date -
Nov 4, 2004
app pub date -
Oct 24, 2003
filing date -
Apr 30, 2003
priority date (Note) -
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Abstract
An approximation method and system for series expansion of functions include the steps and functions, respectively, of: expanding an input function in Taylor series up to an (N-1)-th term; expanding the input function in Taylor series up to the N-th term; multiplying the expanded result up to the (N-1)-th term by a predetermined weight .alpha.; combining the expanded result up to the (N-1)-th term, multiplied by .alpha., and the expanded result up to the N-th term; and dividing the combined result by (.alpha.+1).
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