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        Probability density function for the exponential distribution
        
         
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          Permission is granted to copy, distribute and/or modify this document under the terms of the  GNU Free Documentation License, Version 1.2 or any later version published by the  Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled  GNU Free Documentation License.  http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue 
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        gnuplot source under GPL:
dexp(x,r) = r * exp(-r*x)
pexp(x,r) = 1 - exp(-r*x)
set samples 1001
set terminal postscript enhanced colour solid lw 2 "Times-Roman" 20
set output
set ytics 0.1
f(x,y) = dexp(x,y)
set key 4.3,1.4
#f(x,y) = pexp(x,y)
#set key 4.3,0.2
plot [0:5] \
    f(x, 0.5) title "{/Symbol l} = 0.5", \
    f(x, 1.0) title "{/Symbol l} = 1.0", \
    f(x, 1.5) title "{/Symbol l} = 1.5"
         
          
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           This  vector image was created with  gnuplot. | 
          
         
         
        
         
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          This work is  free software; you can redistribute it and/or modify it under the terms of the  GNU General Public License as published by the  Free Software Foundation; either version 2 of the License, or any later version. This work is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. See  version 2 and  version 3 of the GNU General Public License for more details.http://www.gnu.org/licenses/gpl.htmlGPLGNU General Public Licensetruetrue | 
         
        
        
        
        
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