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AZEN-SGG 2025-04-08 17:30:03 +03:00
parent abef957004
commit 9ac855db96
2 changed files with 7 additions and 10 deletions
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11
2025.04.04/dist/Krivoruchenko_SK/solve.c vendored
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@ -143,17 +143,15 @@ void gauss_inverse(const int n, const int k, double * restrict A, double * restr
const int kn = k*n;
const int kk = kn + k;
const double inv_akk = 1./A[kk];
A[kk] = 1.;
if (eps > DBL_EPSILON)
eps = DBL_EPSILON;
for (int ij = kk+1; ij < kn+n; ij++)
A[ij] *= inv_akk;
for (int ij = kn; ij < kn + n; ij++)
X[ij] *= inv_akk;
// Делим на A[k][k]
for (int kj = kk+1; kj < kn+n; kj++)
A[kj] *= inv_akk;
// Меняем обратную матрицу
for (int j = 0; j < n; ++j)
{
double xkj = X[kn + j];
@ -189,7 +187,6 @@ void gauss_back_substitution(const int n, double * restrict A, double * restrict
{
const int in = i*n;
const double aik = A[in + k];
A[in + k] = 0;
for (int j = 0; j < n; ++j)
X[in + j] -= X[kn + j] * aik;