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MathGroup Archive 1995

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On::none: Message SeriesData::csa not found.

  • To: mathgroup at christensen.cybernetics.net
  • Subject: [mg1763] On::none: Message SeriesData::csa not found.
  • From: Andrew Cooke <ajc at reaxp01.roe.ac.uk>
  • Date: Wed, 26 Jul 1995 00:51:44 -0400
  • Organization: Institute for Astronomy, Royal Observatory Edinburgh

	hi,

	could any kind soul explain what the error

On::none: Message SeriesData::csa not found

	means?

	it came from the following integral (it's supposed to be a
	convolution of a log-gaussian and a power law)

In[26]:= ?f
Global`f

f[n_, s_, b_, x_] := (1*Exp[-(x^2/(2*s^2))])/(s*Sqrt[2*Pi]*n^b*10^(b*x))

In[26]:= Integrate[f[n,s,b,x],x]

                          1
         Integrate[----------------, x]
                           2     2
                     b x  x /(2 s )
                   10    E
Out[26]= ------------------------------
                 b
                n  Sqrt[2 Pi] s

In[27]:= Integrate[f[n,s,b,x],{x,-Infinity,Infinity}]

On::none: Message SeriesData::csa not found.

Out[27]= 0

	this zero seems a bit strange too.  i assume that i am doing
	something stupid (and that undersatnding the error message might
	help).

	thanks,
	andrew

	p.s. it's Mathematica 2.2 for Solaris

-- 
  A.Cooke at roe.ac.uk  work phone 0131 668 8357  home phone/fax 0131 667 0208
    institute for astronomy, royal observatory, blackford hill, edinburgh
                     http://www.roe.ac.uk/ajcwww


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