SRC/clag2z.f(3)

💅 SRC/clag2z.f — like, the whole thing, from clag2z.f(3)

okay so bestie, this is the manual page for SRC/clag2z.f, straight out of the LAPACK library functions manual. it's a tiny icon and it does exactly one job. let's get into it 💖

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✨ SYNOPSIS ✨

Functions/Subroutines

• subroutine clag2z (m, n, sa, ldsa, a, lda, info) — CLAG2Z converts a complex single precision matrix to a complex double precision matrix. that's it, that's the whole vibe 🦋

🎀 Function/Subroutine Documentation 🎀

subroutine clag2z (integer m, integer n, complex, dimension( ldsa, * ) sa,
    integer ldsa, complex*16, dimension( lda, * ) a, integer lda, integer
    info)

CLAG2Z converts a complex single precision matrix to a complex double precision matrix. glow-up routine fr fr ✨

🌸 Purpose 🌸

!>
!> CLAG2Z converts a COMPLEX matrix, SA, to a COMPLEX*16 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 basically it takes your COMPLEX matrix SA and hands you back a COMPLEX*16 matrix A. level-up energy 👑

👀 quick note bestie: going double → single can overflow, no cap. but going single → double? cannot overflow. it's giving safe, it's giving trusted.

and uh — This is an auxiliary routine so there is no argument checking. so she does not check your args for you. she trusts you. do not betray that trust 🙈

💜 Parameters 💜

• M — M is INTEGER, The number of lines of the matrix A. M >= 0. the row count of A, and yes it must be ≥ 0. literally.
• N — N is INTEGER, The number of columns of the matrix A. N >= 0. the column count of A, also ≥ 0. we love a non-negative queen 🌈
• SA — SA is COMPLEX array, dimension (LDSA,N), On entry, the M-by-N coefficient matrix SA. this is the single-precision complex input you're handing over on entry. the before picture 📸
• LDSA — LDSA is INTEGER, The leading dimension of the array SA. LDSA >= max(1,M). the leading dimension of SA, and it's gotta be >= max(1,M). don't fumble that 🫶
• A — A is COMPLEX*16 array, dimension (LDA,N), On exit, the M-by-N coefficient matrix A. the double-precision complex output, filled in on exit. the after picture, the glow-up, the main character 💅
• LDA — LDA is INTEGER, The leading dimension of the array A. LDA >= max(1,M). leading dimension of A, again >= max(1,M). same energy, same rule ⭐
• INFO — INFO is INTEGER, = 0: successful exit — that's the only documented value: 0 means everything went off without a hitch. slay ✅

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🧚 Author 🧚

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

and lowkey the real receipt: Definition at line 102 of file clag2z.f. 🔥

👑 Author 👑

Generated automatically by Doxygen for LAPACK from the source code. not me being auto-generated by Doxygen, iykyk 😭

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🫶 ok that's the whole page, no skips, no summaries, everything's here.

and as a lil sign-off: this gorgeous thing is from LAPACK, Version 3.12.0, and the page itself is SRC/clag2z.f(3) — no date on the footer, so that's the whole stamp bestie 🎀✨💖