[vhdl-200x] Regarding Fixed Point Algorithmic User's Guide

Hi group,

  I had a look at the Fixed Point Algorithmic User's Guide. I am not sure
about the utility of including functions to calculate exp(), log() and some
trigonometric functions like sin(). The reason I am not sure is that
vendors, at least the FPGA ones, provide IP cores to do these operations.
Of course they have their own limitations etc. but that is another issue.

 Is there really a need to include some of those functions in the package?
If yes, where would they find most utility? Synthesis, testbench or both?

Regard,
Sharad

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