Question

Analytic Geometry
What is the difference between direction vector and direction ratio ?? or the are the same ?? and what is the importance of direction ratio ??

Answer 1

Direction ratios are the components of a direction vector. Direction vectors are vectors in a particular direction i.e. btween 2 points

Answer 2

Parametrically a line is defined as c + tv
v is the direction vector
t is a parameter
c is a point on the line

Answer 3

Many Thnx :D