The fastest addition is the following one ( comparing with the results given in : http://hyperelliptic.org/EFD/g1p/index.html ) .
The cost that addition takes is 4 multiplications , 4 squaring and 10 addition .
The fastest addition is the following one ( comparing with the results given in : http://hyperelliptic.org/EFD/g1p/index.html ) , and the cost that it takes is 4 multiplications , 4 squaring and 10 addition .