void mod_size( MatT& A, unsigned r, unsigned c, unsigned s ) {
A.resize( r, c, s );
A.randn( r, c, s );
for( unsigned i=0; i<r; i++ ) {
for( unsigned j=0; j<c; j++ ) {
for( unsigned k=0; k<s; k++ ) {
A(i,j,k) = (typename MatT::elem_type)(i*100+j*10+k);
}
}
}
};
void mod_content( MatT& A ) {
A.randn( A.n_rows, A.n_cols, A.n_slices );
A.fill(25);
A(0,0,0)=0;
};