The scalar product also allows one to define an angle between two vectors::formula_15In formula_16-dimensional Euclidean space, the standard scalar product (called the dot product) is given by::formula_17الجداء الاتجاهيلتكن المصفوفتين:formula_18 و formula_19:formula_20هناك العديد من أنواع الجداءات الأخرى اللائي يدرسن في الرياضيات:* جداء كرونكر.
The scalar product also allows one to define an angle between two vectors::formula_30In formula_31-dimensional Euclidean space, the standard scalar product (called the dot product) is given by::formula_32===Cross product in 3-dimensional space===The cross product of two vectors in 3-dimensions is a vector perpendicular to the two factors, with length equal to the area of the parallelogram spanned by the two factors.