SADD                (Animal Breeder's Tool Kit)                     SADD



NAME

     sadd - add two sparse stored matrices



SYNOPSIS

     sadd [-z](matrix file)  [-z](matrix file)[*s] (output matrix

     file)



DESCRIPTION

     sadd  adds  conforming SPARSE  stored matrices,  placing the

     results in a  SPARSE stored  matrix file.   Matrices in  the

     first  two files  named  will be  added  together, with  the

     result written  to the third file named.  -z must be used to

     indicate an  input  matrix  file is  compressed.    With  *s

     following the  second matrix  name, elements of  that matrix

     will be  multiplied  by the  scalar  s before  matrices  are

     added.    When  adding   SPARSE  stored  matrices,  sadd  is

     considerably faster than add,  which operates on matrices in

     any storage mode. 



EXAMPLE

     sadd  -zzbtrzb -zv*.05 zb.A



     adds the  matrix stored in  the compressed file  zbtrzb.Z to

     the matrix stored in  the compressed file v.Z.   Elements of

     the matrix in v.Z are multiplied by 0.05 before addition.



BUGS

     sadd operates on SPARSE stored matrices only.



SEE ALSO

     add