A vector can be multiplied with a scalar by multiplying every component of with .
By multiplying with a scalar, the magnitude of the vector changes (unless the scalar is one). For example, multiplying a vector by 2 will make it twice as long. Multiplying with a negative number will reverse the orientation. If the scalar is -1, the orientation will stay the same but the vector’s head and tail are reversed.
We multiply the vector by a scalar: