2 sequences of numbers: their sum (a1+b1,.., aN+bN) and their norms (or lengths),
dot product (a1·b1+..+aN·bN) and (if N=3) cross product

Enter a1, a2, ... separated by commas

Enter b1, b2, ... separated by commas

||a|| =               ||b|| =



Storing calculations (you can also annotate comments)
If you have to put a coefficient using some function symbol (for example 1/5, √2), put it in a numerical form (0.2, 1.414213562373095), for example using this (or this)