API Reference > geometry-core > CartesianGeometry > Vector3d > dotProduct dotProduct Method Return the dot product of this vector with vectorB. dotProduct(vectorB: Readonly<WritableXYAndZ>): number Parameter Type Description vectorB Readonly<WritableXYAndZ> second vector of cross product Returns - number the dot product of this instance with vectorB Defined in geometry3d/Point3dVector3d.ts Line 1082 Last Updated: 11 June, 2024