ZGETRS(3)

Hiii bestie 💖 welcome to the zgetrs.f(3) page in the LAPACK Library Functions Manual ✨

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🌸 NAME 🌸

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/zgetrs.f — yup, that's the exact file this whole page is about, no cap.

✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

• subroutine ZGETRS (trans, n, nrhs, a, lda, ipiv, b, ldb, info) — the full call, bestie. Every single argument is part of the vibe.
• ZGETRS — literally the name, main character energy.

🦋 Function/Subroutine Documentation 🦋

subroutine ZGETRS (character trans, integer n, integer nrhs, complex*16,
    dimension( lda, * ) a, integer lda, integer, dimension( * ) ipiv,
    complex*16, dimension( ldb, * ) b, integer ldb, integer info)

ZGETRS — okay, now we get into the actual details 👑

💜 Purpose 💜

ZGETRS solves a system of linear equations:

A * X = B,  A**T * X = B,  or  A**H * X = B

with a general N-by-N matrix A using the LU factorization computed by ZGETRF. Periodt. 🔥

🍓 Parameters 🍓

• TRANS — TRANS is CHARACTER*1. It specifies the form of the system of equations:
  • = 'N': A * X = B (No transpose)
  • = 'T': A**T * X = B (Transpose)
  • = 'C': A**H * X = B (Conjugate transpose)
• N — N is INTEGER. The order of the matrix A. N >= 0.
• NRHS — NRHS is INTEGER. The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
• A — A is COMPLEX*16 array, dimension (LDA,N). The factors L and U from the factorization A = P*L*U as computed by ZGETRF.
• LDA — LDA is INTEGER. The leading dimension of the array A. LDA >= max(1,N).
• IPIV — IPIV is INTEGER array, dimension (N). The pivot indices from ZGETRF; for 1<=i<=N, row i of the matrix was interchanged with row IPIV(i).
• B — B is COMPLEX*16 array, dimension (LDB,NRHS). On entry, the right hand side matrix B. On exit, the solution matrix X.
• LDB — LDB is INTEGER. The leading dimension of the array B. LDB >= max(1,N).
• INFO — INFO is INTEGER.
  • = 0: successful exit
  • < 0: if INFO = -i, the i-th argument had an illegal value

👑 Author 👑

• Univ. of Tennessee
• Univ. of California Berkeley
• Univ. of Colorado Denver
• NAG Ltd.

Definition at line 120 of file zgetrs.f.

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code.

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okay that's the whole page, bestie 🫶 — it's from LAPACK, Version 3.12.0, and the footer path is /home/abui...RC/zgetrs.f(3). mwah 💋