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Last modified: Tue Aug 18 15:38:05 2015.

List of Routines

Routine Descriptions

ATOMIC_WEIGHT

 [Next Routine] [List of Routines] 
 NAME:
  atomic_weight
 PURPOSE: (one line)
  Return the atomic weight
 DESCRIPTION:
  Atomic weights from CRC 63rd edition, pp B-255
  If only the atomic number is given, then this returns
  the weight assuming natural abundances.
  If both the atomic number and isotope are given,
  then this returns the atomic weight from the
  CRC, if it was tabulated there, otherwise it
  simply returns the inputed
  isotopic number.
 CATEGORY:
  General
 CALLING SEQUENCE:
  w = atomic_weight(n, iso) or w = atomic_weight(n)
 INPUTS:
  n - atomic number (e.g., 1 for H)
  iso - isotope (e.g., 12 for Carbon 12)
 OPTIONAL INPUT PARAMETERS:
  none
 KEYWORD INPUT PARAMETERS:
  none
 KEYWORD OUTPUT PARAMETERS:
  none
 OUTPUTS:
  atomic weight (g/mole, e.g., 12. for atomic_weight(6,12) )
 COMMON BLOCKS:
  None
 SIDE EFFECTS:
 RESTRICTIONS:
  For n > 18, the only element w/ isotopes is Br.
 PROCEDURE:
 MODIFICATION HISTORY:
  Written 2000 October, by Leslie Young, SwRI

(See ../general/atomic_weight.pro)

PHYSCONSTANTS[1]

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 NAME:
  physconstants
 PURPOSE: (one line)
   Add a structure of physical constants as a non-standard system variable
 DESCRIPTION:
  This is just a simple way to collect the physical constants (cgs) together.
   1998 CODATA recommended values
   The new set of recommended values is available on the World Wide Web at 
   physics.nist.gov/constants.
                              
   Journal of Physical and Chemical Reference Data, Vol. 28, No. 6, 1999 and in the 
   Reviews of Modern Physics, Vol. 72, No. 2, 2000. 
   CODATA Recommended Values of the Fundamental Physical Constants: 1998
   Peter J. Mohr and Barry N. Taylor

 CATEGORY:
  Astronomy
 CALLING SEQUENCE:
  physconstants
 INPUTS:
  none
 OPTIONAL INPUT PARAMETERS:
  none
 KEYWORD INPUT PARAMETERS:
  none
 KEYWORD OUTPUT PARAMETERS:
  none
 OUTPUTS:
  None.
 COMMON BLOCKS:
  None.
 SIDE EFFECTS:
  Defines the system variable !phys using defsysv
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written 2000 April, by Leslie Young, SwRI
  Added to "layoung" library 2000 October, by Leslie Young, SwRI
  2004 Apr 5 move to CODATA 2002, added sigma, added some units,
   fixed sign error in exponent for eV.  LAY SwRI
  2006 Apr 28.  Make constants doubles.  LAY

(See ../general/physconstants.pro)

PHYSCONSTANTS[2]

 [Previous Routine] [List of Routines] 
 NAME:
  physconstants
 PURPOSE: (one line)
   Add a structure of physical constants as a non-standard system variable
 DESCRIPTION:
  This is just a simple way to collect the physical constants (cgs) together.
   1998 CODATA recommended values
   The new set of recommended values is available on the World Wide Web at 
   physics.nist.gov/constants.
                              
   Journal of Physical and Chemical Reference Data, Vol. 28, No. 6, 1999 and in the 
   Reviews of Modern Physics, Vol. 72, No. 2, 2000. 
   CODATA Recommended Values of the Fundamental Physical Constants: 1998
   Peter J. Mohr and Barry N. Taylor

 CATEGORY:
  Astronomy
 CALLING SEQUENCE:
  physconstants
 INPUTS:
  none
 OPTIONAL INPUT PARAMETERS:
  none
 KEYWORD INPUT PARAMETERS:
  none
 KEYWORD OUTPUT PARAMETERS:
  none
 OUTPUTS:
  None.
 COMMON BLOCKS:
  None.
 SIDE EFFECTS:
  Defines the system variable !phys using defsysv
 RESTRICTIONS:
 PROCEDURE:
 MODIFICATION HISTORY:
  Written 2000 April, by Leslie Young, SwRI
  Added to "layoung" library 2000 October, by Leslie Young, SwRI

(See ../general/physconstants1998.pro)