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Re: Speeding up HermiteH[Range[0,p],x]

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  • Subject: [mg72403] Re: Speeding up HermiteH[Range[0,p],x]
  • From: David Bailey <dave at>
  • Date: Mon, 25 Dec 2006 04:52:39 -0500 (EST)
  • References: <emdofq$jom$>


I think what you are asking is why, in expressions such as 
HermiteH[Range[0,p],x], Mathematica does not do what a mathematician 
might do, and calculate one value from the previous one using a 
recurrence relation. However, can you imagine the number of special 
cases of this sort that would have to be coded into Mathematica software 
to make this a reality! Also, at least for some functions, the repeated 
use of a recurrence relation might build up rounding errors if x is numeric.

David Bailey

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