Read the result
A positive dot product means the vectors broadly point the same way. A negative value means one has a component opposing the other.
Vector algebra
Calculate a scalar product and connect it to angle, projection, and work done.
Formula
A . B = AxBx + AyBy + AzBz
The dot product links components with angle, projection, and work.
Read the result
A positive dot product means the vectors broadly point the same way. A negative value means one has a component opposing the other.
Where it helps
This is the core calculation behind angles between vectors, mechanical work, and projection onto a direction.
Common slip
The dot product is a scalar, not a vector. Do not attach i, j, k components to the final value.
Try it
Use A = (1, 0, 0) and B = (0, 1, 0). The dot product should be 0 because the axes are perpendicular.