# Vector's directional cosines online calculator

*Vector's directional cosines* is called the cosines of the angles between given vector and the axes of coordinates:

From the elementary geometrical considerations follows:

Besides, from the formulas above follow the relation:

cos ^{2} α +
cos ^{2} β +
cos ^{2} γ = 1

Our online calculator is able to calculate vector's directional cosines with free step by step solution.

## Input vector dimension

Vector dimension
2
3

Vector
representations form:
coordinates
points

Vector
= { }

Vector
: