解析几何,也叫坐标几何,是一门几何学分支,实现了代数和几何的统一,利用数形结合的方式解决问题。解析几何将变量引入数学,推动了数学的发展。而向量既有方向,又有大小,为实现数形结合搭建了桥梁,是解析几何的重要工具,在其中发挥着关键性作用。如利用向量方向可求角,利用向量大小可求距离。所以,有必要将向量用于解析几何中,更加方便地解决实际问题。 Analytic geometry, also called coordinate geometry, is a branch of geometry that realizes the unification of algebra and geometry, using a combination of numbers and forms to solve problems. Analytic geometry introduces variables into mathematics and promotes the development of mathematics. The vector has both direction and size, and it is an important tool for analytic geometry in order to realize the combination of number and form, playing a key role in it. Such as the use of the direction of the vector can be used to seek the distance vector size. Therefore, it is necessary to use the vector in analytic geometry to solve practical problems more conveniently.