 Usage:  dx = diff(x)  

 

 Input:



  x                      array, d1 x d2 x ... x dn 

                         

 Output:



  dx                     array, (d1-1) x d2 x ... x dn, first 

                         differences along the rows of x. 

                         

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(C) MD*TECH Method and Data Technologies, 21.9.2000

