[ccp4bb] structure (factor) amplitude

2009-01-10 Thread Bernhard Rupp 
Dear All,

I am getting conflicting comments on the use of 
'structure factor amplitude'
vs. just
'structure amplitude'
for |F|.

Is there some 'modern' consensus on a preference? 

Best, BR

Re: [ccp4bb] structure (factor) amplitude

2009-01-10 Thread Ethan A Merritt 
On Saturday 10 January 2009, Bernhard Rupp wrote:
 Dear All,
 
 I am getting conflicting comments on the use of 
 'structure factor amplitude'
 vs. just
 'structure amplitude'
 for |F|.

???
That's just... odd.

|F| is the amplitude of F.
But no way F is a structure.


-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742

Re: [ccp4bb] structure (factor) amplitude

2009-01-10 Thread Pavel Afonine 



On 1/10/2009 5:14 PM, Ethan A Merritt wrote:

On Saturday 10 January 2009, Bernhard Rupp wrote:
  

Dear All,

I am getting conflicting comments on the use of 
'structure factor amplitude'

vs. just
'structure amplitude'
for |F|.



???
That's just... odd.

|F| is the amplitude of F.
But no way F is a structure.
  


I agree. If F is a structure factor then |F| is a structure factor 
amplitude. structure amplitude doesn't make much sense...

Pavel.