LOGARITHM CALCULATION METHOD AND LOGARITHM CALCULATION CIRCUIT

LOGARITHM CALCULATION METHOD AND LOGARITHM CALCULATION CIRCUIT

The present invention provides a logarithm calculation method, wherein the logarithm calculation method includes the steps of: (a) selecting a first parameter, a second parameter, a third parameter and a fourth parameter corresponding to an i-th iteration operation; (b) determining whether an input...

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Hauptverfasser: Qiu, Dong, Wu, Yan, Tang, Mingzhe, Zhao, Boya
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator Qiu, Dong
Wu, Yan
Tang, Mingzhe
Zhao, Boya
description The present invention provides a logarithm calculation method, wherein the logarithm calculation method includes the steps of: (a) selecting a first parameter, a second parameter, a third parameter and a fourth parameter corresponding to an i-th iteration operation; (b) determining whether an input value is greater than the third parameter or smaller than the fourth parameter (c) if the input value is greater than the third parameter, updating the input value by multiplying the first parameter, and updating an output value by subtracting a logarithmic value of the first parameter; if the input value is less than the fourth parameter, updating the input value by multiplying the second parameter, and updating the output value by subtracting a logarithmic value of the second parameter (d) adding one to 'i' and return to step (a); (e) when 'i' is equal to a predetermined value, outputting the current output value.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title LOGARITHM CALCULATION METHOD AND LOGARITHM CALCULATION CIRCUIT
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