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authorJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
committerJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
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tree4464880c571602d54f6ae114729bf62a89518057 /math/bevington/ploren.f
downloadiraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz
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+c function ploren.f
+c
+c source
+c Bevington, page 51.
+c
+c purpose
+c evaluate lorentzian probability function
+c
+c usage
+c result = ploren (x, averag, width)
+c
+c description of parameters
+c x - value for which probability is to be evaluated
+c averag - mean of distribution
+c width - full width at half maximum of distribution
+c
+c subroutines and function subprograms required
+c none
+c
+ function ploren (x,averag,width)
+1 ploren=0.1591549431*width/((x-averag)**2+(width/2.)**2)
+ return
+ end