The theoretical foundations and algorithms for evaluation of mathematical func-
tions suitable for hardware design are covered in a comprehensive manner
in Muller (1997). Approximation theory useful in deriving algorithms is dis-
cussed in standard books on numerical methods such as Dahlquist and Bjorck
(1974) and Mathews (1992). Cheney (1966) and Davis (1990) are classics on
the function approximation theory. Early work on approximations for soft-
ware implementation is found in Hart et al. (1978). Practical polynomial and
rational approximations ...
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