Re: [ccp4bb] atomic FF used in SFALL

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From: hong yu honghyu {- at -} HOTMAIL {- dot -} COM
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From: Jacob Keller j-keller2 {- at -} MD {- dot -} NORTHWESTERN {- dot -} EDU
Date: 2007-10-11

Subject: Re: atomic FF used in SFALL
From: Bernhard Rupp bernhardrupp {- at -} SBCGLOBAL {- dot -} NET
Date: 2007-10-11

It seems that 5-Gaussian is indeed the accepted technical term
for the 9-parameter expansion:
Given that a5=c and b5=0, the 5th Gaussian can be a constant.

Continuing this reasoning, even a binary mumber can be represented
as series of Gaussians.....a=0,b=0; a=1, b=0

This is called 'Gomputing'.

Cheers, br

-----Original Message-----
From: Eleanor Dodson [mailto:ccp4@ysbl.york.ac.uk]
Sent: Thursday, October 11, 2007 1:26 AM
To: bernhardrupp@sbcglobal.net
Cc: CCP4BB@jiscmail.ac.uk
Subject: Re: [ccp4bb] atomic FF used in SFALL

I wrote that - is a constant a Gaussian? Anyway that is how I got 5 - and it
is the

9-parameter Cromer-Mann approximation..

And Yes - each component is added to the B value to build up the real space
atomic density.

as you show.

Eleanor

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Subject: Re: His tag does not bind.
From: hong yu honghyu {- at -} HOTMAIL {- dot -} COM
Date: 2007-10-11

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From: Jacob Keller j-keller2 {- at -} MD {- dot -} NORTHWESTERN {- dot -} EDU
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