Vectors represent physical quantities which have magnitude and a direction. Vectors are identified by a symbolic name which will be typeset in bold like $$\vec{r}$$ or $$\vec{F}$$ to indicate its vector nature. The primary vector quantity you will encounter in statics will be force, but moment and position are also important vectors. Computations involving vectors must always consider the directionality of each term and follow the rules of vector algebra as described in this chapter.