Spatial vector parallel formula

Parallel formula of space vector: d = | ax0+by0+c |/√ a 2+b 2. The quantity with size and direction in space is called space vector. The size of a vector is called its length or modulus. Regulation: A vector with a length of 0 is called a zero vector and recorded as 0.

When there is no common point between two straight lines on a plane, two planes in space and a straight line in space and a plane, they are said to be parallel. Parallel lines will not intersect at any distance.