SRC/dlaswp.f(3)

💖 NAME 💖

SRC/dlaswp.f — straight out of the Library Functions Manual, bestie. This is the page for the dlaswp routine. ✨

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✨ SYNOPSIS ✨

Functions/Subroutines

• subroutine dlaswp (n, a, lda, k1, k2, ipiv, incx) — DLASWP performs a series of row interchanges on a general rectangular matrix. 💅

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🫶 Function/Subroutine Documentation 🫶

🧚 subroutine dlaswp 🧚

Here’s the whole signature, no cap:

subroutine dlaswp (integer n, double precision, dimension( lda, * ) a,
    integer lda, integer k1, integer k2, integer, dimension( * ) ipiv,
    integer incx)

DLASWP performs a series of row interchanges on a general rectangular matrix. 🌸

🎀 Purpose 🎀

DLASWP performs a series of row interchanges on the matrix A. One row interchange is initiated for each of rows K1 through K2 of A. ✨

🌈 Parameters 🌈

• N — N is INTEGER. It’s the number of columns of the matrix A. 👑
• A — A is DOUBLE PRECISION array, dimension (LDA,N). On entry, it’s the matrix of column dimension N to which the row interchanges will be applied. On exit, it’s the permuted matrix. 🦋
• LDA — LDA is INTEGER. It’s the leading dimension of the array A. 💜
• K1 — K1 is INTEGER. It’s the first element of IPIV for which a row interchange will be done. 🎀
• K2 — K2 is INTEGER. (K2-K1+1) is the number of elements of IPIV for which a row interchange will be done. 🌟
• IPIV — IPIV is INTEGER array, dimension (K1+(K2-K1)*abs(INCX)). It’s the vector of pivot indices. Only the elements in positions K1 through K1+(K2-K1)*abs(INCX) of IPIV are accessed. IPIV(K1+(K-K1)*abs(INCX)) = L implies rows K and L are to be interchanged. 🔥
• INCX — INCX is INTEGER. It’s the increment between successive values of IPIV. If INCX is negative, the pivots are applied in reverse order. 💫

👑 Author 👑

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

🔍 Further Details 🔍

Modified by R. C. Whaley, Computer Science Dept., Univ. of Tenn., Knoxville, USA 🫶

Definition at line 114 of file dlaswp.f. 📌

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🌟 Author 🌟

Generated automatically by Doxygen for LAPACK from the source code. 🤖💖

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Okay that’s the whole page, bestie — every parameter, every author, every little IPIV detail preserved and slaying. 💅✨

Sign-off vibes: LAPACK, Version 3.12.0, SRC/dlaswp.f(3) — mwah. 💋🫶