 Usage:  {r,s}=numint2(aIh,b,N)  
 
 Input:

  aIh                    dim: 2; diag. of Eigenvalues of A I^{1/2}, 
                         I Fisher-Information (>=0) 
                         
  b                      numeric; clipping height (>0) 
                         
  N                      numeric; number of gridpoints for Integration 
                         
 Output:

  r                      2-dim ; r=diag(E[ YY' u min(b/|aIhY|,u) ]) 
                         
  s                      2-dim; s=diag(E[ YY' min(b/|aIhY|,u)^2 ]) 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
