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 HELP 
 
 


This is the GIFA Version 4.0  program.

Type help Name_of_item to get info about a specific command. H can 
be used instead of HELP.
Use apropos topic, to find commands name related to a specific 
topic.
Use help primer for a first introduction.

see also : apropos

 
 HPHASE 
 
 

HPHASE x y {dim}
Equivalent to PHASE, but the phase rotation is computed for real 
spectra, using the properties of the Hilbert transform. HPHASE x y 
is equivalent to the sequence : IFTBIS  CHSIZE *2  FT  PHASE x y  
REAL 

see also : FT PHASE REAL

 
 hzpcm 
 
 

 hzpcm { hz_per_cm_in F1 } hz_per_cm_in F2
 determines CX an CY to give the correct Hz per cm
 depending on the current zoom window