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◆ subtractMultipleTo() [4/10]

void MatrixOps::subtractMultipleTo ( DMatQQ & C,
const DMatQQ & A,
const DMatQQ & B )
inline

Definition at line 1068 of file mat-linalg.hpp.

1069{
1070 FlintQQMat A1(A);
1071 FlintQQMat B1(B);
1072 FlintQQMat C1(C);
1073 FlintQQMat result1(A.numRows(), B.numColumns());
1074
1075 FlintQQMat D1(A.numRows(), B.numColumns());
1076 fmpq_mat_mul(D1.value(), A1.value(), B1.value());
1077 fmpq_mat_sub(C1.value(), C1.value(), D1.value());
1078
1079 C1.toDMat(C);
1080}
size_t numRows() const
Definition dmat.hpp:144
size_t numColumns() const
Definition dmat.hpp:145
RAII wrapper around FLINT's fmpq_mat_t for translating dense QQ-coefficient matrices between the engi...

References DMat< ACoeffRing >::numColumns(), DMat< ACoeffRing >::numRows(), FlintQQMat::toDMat(), and FlintQQMat::value().