Function lbcrypto::ExtractShiftedDiagonal

• Defined in File ckksrns-utils.cpp

Function Documentation

std::vector<std::complex<double>> lbcrypto::ExtractShiftedDiagonal(const std::vector<std::vector<std::complex<double>>> &A, int i)

Extracts shifted diagonal of matrix A.

Parameters

• A – square linear map.

• i – the index by which the diagonal is shifted.

Returns

the vector corresponding to the shifted diagonal