SLAG2D(3)

💅 NAME 💅

okay so bestie, the manual name is literally this path, no cap:

/home/abuild/rpmbuild/BUILD/lapack-static-3.12.0-build/lapack-3.12.0/SRC/slag2d.f

(and yeah the page header at the top is the abbreviated vibe, /home/abui...RC/slag2d.f(3) — that's just the same file being ✨shy✨ about its full path)

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🌸 SYNOPSIS 🌸

Functions/Subroutines

• subroutine SLAG2D (m, n, sa, ldsa, a, lda, info) — SLAG2D converts a single precision matrix to a double precision matrix. that's the whole assignment, and she ate 💅

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🦋 Function/Subroutine Documentation 🦋

subroutine SLAG2D (integer m, integer n, real, dimension( ldsa, * ) sa,
    integer ldsa, double precision, dimension( lda, * ) a, integer lda,
    integer info)

SLAG2D converts a single precision matrix to a double precision matrix. iconic behavior honestly 💖

🎀 Purpose:

!>
!> SLAG2D converts a SINGLE PRECISION matrix, SA, to a DOUBLE
!> PRECISION matrix, A.
!>
!> Note that while it is possible to overflow while converting
!> from double to single, it is not possible to overflow when
!> converting from single to double.
!>
!> This is an auxiliary routine so there is no argument checking.
!>

so like, the glow-up goes one direction only: double → single can overflow (😭 scary), but single → double is safe, not me checking the overflow risk and finding none ✨

and heads up bestie — this is an auxiliary routine so there is no argument checking. she trusts you. she does not verify. 🫶

🌈 Parameters

• M — M is INTEGER, the number of lines of the matrix A. M >= 0. (the height, the vertical situation 💅)
• N — N is INTEGER, the number of columns of the matrix A. N >= 0. (the width, the horizontal situation 🎀)
• SA — SA is REAL array, dimension (LDSA,N). On entry, the M-by-N coefficient matrix SA. this is the input, the before picture 🦋
• LDSA — LDSA is INTEGER, the leading dimension of the array SA. LDSA >= max(1,M). (yes, the max(1,M) is real, respect it 💀)
• A — A is DOUBLE PRECISION array, dimension (LDA,N). On exit, the M-by-N coefficient matrix A. the after picture, the glow-up itself 👑
• LDA — LDA is INTEGER, the leading dimension of the array A. LDA >= max(1,M). same energy, different array 💜
• INFO — INFO is INTEGER, and the only documented value is = 0: successful exit. that's it, she's chill, she just tells you it went fine 🌸

⭐ Author

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

🧚 Definition at line 103 of file slag2d.f.

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👑 Author

Generated automatically by Doxygen for LAPACK from the source code. (the robot did the writing, we just gave it the ✨lewk✨)

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fr fr if you made it this far, the whole conversion is: single in, double out, no overflow panic, no argument checks, INFO = 0 on success and you're literally done. slay 🎀

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self care check bestie: this page is from LAPACK, Version 3.12.0, and the footer stamp is /home/abui...RC/slag2d.f(3) — so that's the source, the version 3.12.0, and the dated page marker all wrapped up in one cute little sign-off. mwah 💖