Radial numerical integrations based on the sinc function
      
      
        
      
      
      
      
        
          
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Weber, Valéry
  Department of Chemistry, University of Fribourg, Fribourg, Switzerland
          
 
          
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Daul, Claude
  Department of Chemistry, University of Fribourg, Fribourg, Switzerland
          
 
          
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Baltensperger, Richard
  Department of Mathematics, University of Fribourg, Fribourg, Switzerland
          
 
          
        
        
       
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
        
        Published in:
        
          
            
            - Computer Physics Communications. - 2004, vol. 163, no. 3, p. 133-142
 
            
          
         
       
      
      
      
      
      
       
      
      
      
        
        English
        
        
        
          An algorithm for the generation of adaptive radial grids used in density functional theory or quantum chemical calculations is described. Our approach is general and can be applied for the integration over Slater or Gaussian type functions with only minor modifications. The relative error of the integration is fully controlled by the algorithm within a specified range of exponential parameters and for a given principal quantum number.
        
        
       
      
      
      
        
        
        
        
        
        
        
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        - Faculté des sciences et de médecine
 
        
        
        
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        - Département de Chimie
 
        
        
        
        
        
        
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                  Mathematics
                
              
            
          
        
 
        
        
        
          
        
        
        
          
        
        
        
        
        
        
        
        
        
        
        
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          https://folia.unifr.ch/unifr/documents/299679
        
 
      
     
   
  
  
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