
Given Epetra_CrsMatrix objects A, B and C, form the product C = A*B. In a parallel setting, A and B need not have matching distributions, but C needs to have the same rowmap as A.
 Parameters:

 A  Input, must already have had 'FillComplete()' called. 
 transposeA  Input, whether to use transpose of matrix A. 
 B  Input, must already have had 'FillComplete()' called. 
 transposeB  Input, whether to use transpose of matrix B. 
 C  Result. On entry to this method, it doesn't matter whether FillComplete() has already been called on C or not. If it has, then C's graph must already contain all nonzero locations that will be produced when forming the product A*B. On exit, C.FillComplete() will have been called. 
 Returns:
 errorcode, 0 if successful. nonzero returns may result if A or B are not already Filled, or if errors occur in putting values into C, etc.
