## vec_dot (VECTOR* vector1, VECTOR* vector2);

Returns the dot product of the two vectors. The dot product is the cosine of
the angle between the two vectors multiplied with the product of their
lengths.

### Parameters:

vector1 - first vector.

vector2 - second vector.
### Returns:

Dot product

### Speed:

Fast### Example:

angle = acos(vec_dot(v1,v2)/(vec_length(v1)*vec_length(v2))); *// calculate the angle between two vectors*

### See also:

Vectors, vec_add, vec_sub,
vec_scale, vec_set,
vec_inverse, vec_diff,
vec_cross
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