SRC/sgesc2.f(3)

💖 NAME 💖

okay so bestie, this is SRC/sgesc2.f from the Library Functions Manual — and it's literally the page for the Fortran subroutine sgesc2. iconic 💅

✨ SYNOPSIS ✨

🎀 Functions/Subroutines 🎀

• subroutine sgesc2 (n, a, lda, rhs, ipiv, jpiv, scale) — SGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2. no cap 🫶

🦋 Function/Subroutine Documentation 🦋

subroutine sgesc2 (integer n, real, dimension( lda, * ) a, integer lda, real, dimension( * ) rhs, integer, dimension( * ) ipiv, integer, dimension( * ) jpiv, real scale)

SGESC2 solves a system of linear equations using the LU factorization with complete pivoting computed by sgetc2. slay ✨

🎯 Purpose:

SGESC2 solves a system of linear equations

A * X = scale* RHS

with a general N-by-N matrix A using the LU factorization with complete pivoting computed by SGETC2. iykyk 💙

🍓 Parameters

• N — N is INTEGER. The order of the matrix A. periodt 🍑
• A — A is REAL array, dimension (LDA,N). On entry, the LU part of the factorization of the n-by-n matrix A computed by SGETC2: A = P * L * U * Q. the way that factorization ate 💜
• LDA — LDA is INTEGER. The leading dimension of the array A. LDA >= max(1, N). vibe check passed 🦋
• RHS — RHS is REAL array, dimension (N). On entry, the right hand side vector b. On exit, the solution vector X. main character energy 🎀
• IPIV — IPIV is INTEGER array, dimension (N). The pivot indices; for 1 <= i <= N, row i of the matrix has been interchanged with row IPIV(i). literally the row-swap receipts ⭐
• JPIV — JPIV is INTEGER array, dimension (N). The pivot indices; for 1 <= j <= N, column j of the matrix has been interchanged with column JPIV(j). and the column-swap receipts too 🌈
• SCALE — SCALE is REAL. On exit, SCALE contains the scale factor. SCALE is chosen 0 <= SCALE <= 1 to prevent overflow in the solution. important safety wig, do not ignore 🔥

🌈 Author

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

💜 Contributors:

Bo Kagstrom and Peter Poromaa, Department of Computing Science, Umea University, S-901 87 Umea, Sweden. legend behavior 🧚

⭐ Definition at line 113 of file sgesc2.f.

👑 Author

Generated automatically by Doxygen for LAPACK from the source code. the automation said periodt 💅

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okay that's the whole page — the footer zone is giving LAPACK, Version 3.12.0, SRC/sgesc2.f(3), and I'm obsessed 🫶💖