Vector operations
¥Amplification
¥V = X ^ n  Þ  vi = sg(vi) * |vi|^ n
¥ … V = V ^ 1/2 and n… V = V ^ 1/n
¥ V € V = V ^ 2 if " vi ³ 0
¥
¥Normalization of ttm product to n terms

V = n… Í Vi