exponential function in vhdl

[ammassk]

dear all

I wrote VHDL code for exponential function using taylor series. But I need to find out exponential values for an array of numbers in between 4 and 50.
But taylor series works for x<1. Can anybody help me to solve this problem?

 

[syedshan]

Its a long time that I studied the taylor series, I am not sure, but if you can give the little details of what you wanna do may be I will be of some help to you.
I search net but it requires some reading and finding taylor series since I confuse with power series, taylor series and similar. So to save time and be on what we need if you can post the specifications.

bests,
Shan

 

[FvM]

exp(50) is quite a large number, I wonder what's the intended number format? I also wonder why you mention an "array of numbers"? Does this mean you need a set of precalculated values rather than a synthesized exponential function generator?

Taylor series can be evaluated around any center value, but there are other series that are better suited for exp() calculations.