Can I rely on symbolic cross?

4 ビュー (過去 30 日間)

Joerg Buchholz 2012 年 9 月 5 日

I cannot find that

cross

is overloaded for symbolic vectors in the documentation. Nevertheless, it seems to work:

>> syms a b c d e f
>> 
>> cross ([a; b; c], [d; e; f])
ans =
   b*f - c*e
   c*d - a*f
   a*e - b*d

Can I rely on that?

Jörg

Andrei Bobrov 2012 年 9 月 5 日

編集済み: Andrei Bobrov 2012 年 9 月 5 日

Hi!

syms ii jj k a b c d e f
collect(det([ii,jj,k;a b c; d e f]),[ii,jj,k])

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