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System and method for approximating nonlinear functions
System and method for approximating nonlinear functions
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机译:近似非线性函数的系统和方法
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摘要
A system (10) is provided for approximating a nonlinear function. The system (10) comprises first and second multiple generating circuits (12) and (14) for multiplying a first quantity and a second quantity by up to three integer powers of two. First and second function generating circuits (16) and (18) generate first and second functions of the first and the second quantities by combining the multiples generated in first and second multiple generating circuits (12) and (14). First and second approximation generating circuits (20) and (22) generate first and second approximations of the nonlinear function by shifting the output of first and second function generating circuits (16) and (18). Approximation selecting circuit (24) outputs the appropriate approximation generated in first and second approximation generating circuits (20) and (22).
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