Gus obrachadh a-mach an scalar product of vectors air-loidhne casan

Air casan a ' cuideachadh dhut obrachadh a-mach an scalar product of vectors.
An scalar product a scalar meud agus obrachadh a-mach an luach, a ' cleachdadh an diabhal (san x b = |a| x |b| cos x α).
Tha a dhèanamh de stuthan de vectors ann an plèana riochdaichte le pairwise iomadachadh na luachan a tha a ' co-òrdanachadh an vectors (a • b = ax x bx + ay x le).
Mar eisimpleir, airson 2-vectors ri co-òrdanachadh san = {5; 8} agus b = {6; 9} scalar product equals 5 x 8 + 6 x 9 = 102.

Meud de vectors:

Form of a 'riochdachadh a' chiad vector:

Form of riochdachadh an dàrna vector:


Chaidh a shònrachadh luach linnторов:
An toiseach linnтор
a
= {
, ,
}
An dàrna vector
b
= {
,,
}