description:
intersection(seq, seq)
intersection(seq, seq, seq)
the intersection function
takes element-wise min of the coefficients
examples:
intersection(|a>, |b>, |c>)
|>
intersection(3|a> + 1.2|b>, 3.5|a> + 0.9|b> + 5.13|c>)
3|a> + 0.9|b>
intersection(|a1> + |a2> . 0.3|b1> + 0.5|b2>, 3|a1> + 0.9|a2> . 0.7|b2>)
|a1> + 0.9|a2> . 0.5|b2>
see also:
union, complement, subset, mbr