But in case of functions, we may multiply them in two ways, namely,
multiplication of two functions pointwise and composition of two functions Similarly,
multiplication of two vectors is also defined in two ways, namely, scalar (or dot)
product where the result is a scalar, and vector (or cross) product where the
result is a vector Based upon these two types of products for vectors, they have
found various applications in geometry, mechanics and engineering In this section,
we will discuss these two types of products