!Mathematically, angle α between two vectors can be written as: α = arccos [ (x a * x b + y a * y b + z a * z b) / (√ (x a2 + y a2 + z a2) * √ (x b2 + y b2 + z b2 ))] Hanna Pamuła, PhD candidate coordinate representation Vector b coordinate representation Angle between two vectors Check out 6 similar angle calculators 🕑