How Do You Know If A Vector Is Parallel? Two vectors are parallel if they have the same direction or are in exactly opposite directions. How do you know if two vectors are parallel? Two vectors are parallel if they have the same direction or are in exactly opposite directions. Now, recall again the geometric
What Happens If 2 Vectors Are Perpendicular? If two vectors are perpendicular, then their dot-product is equal to zero. The cross-product of two vectors is defined to be A×B = (a2_b3 – a3_b2, a3_b1 – a1_b3, a1_b2 – a2*b1). The cross product of two non-parallel vectors is a vector that is perpendicular to both of
Can You Compare Two Vectors? Can you compare two vectors? Comparing two vectors using operator == std::vector provides an equality comparison operator==, it can be used to compare the contents of two vectors. For each element in the vector it will call operator == on the elements for comparisons. How do you compare vector vectors?