algebra_3D.Vector.cos

Vector.cos()

Get a fast computed cos from self vector and vec vector. The operation is realized if and only if the two vectors have the same origin.

Parameters	Type	Description
vec	Vector	The vector angle-oriented with self vector

Returns

double

The computed cosine.

See also

Vector.p1

Vector.vect

Vector.dot

Vector.length

Point.x

Point.y

Point.z

Examples

>>> v=Vector(0,0,0,1,0,0)
>>> u=Vector(0,0,0,0,1,0)
>>> v.cos(u)
0.0