SRC/zlacrm.f(3)

📦
version 3.12.1 · 4 versions
, in arch rolling

✨ SRC/zlacrm.f ✨

okay bestie, so this is a page out of the LAPACK manual (that's the Library Functions Manual, in case you were wondering 💅) and today's main character is a lil Fortran file called zlacrm.f. it's giving "quiet overachiever" and honestly? we're obsessed.

🦋 SYNOPSIS 🦋

Functions/Subroutines

  • subroutine zlacrm (m, n, a, lda, b, ldb, c, ldc, rwork) — ZLACRM multiplies a complex matrix by a square real matrix. that's it, that's the girl 🎀

🌸 Function/Subroutine Documentation 🌸

subroutine zlacrm (integer m, integer n, complex*16, dimension( lda, * ) a, integer lda, double precision, dimension( ldb, * ) b, integer ldb, complex*16, dimension( ldc, * ) c, integer ldc, double precision, dimension( * ) rwork)

okay so picture this: ZLACRM multiplies a complex matrix by a square real matrix. no cap, that's the whole job description 🔥

💖 Purpose:

!>
!> ZLACRM performs a very simple matrix-matrix multiplication:
!>          C := A * B,
!> where A is M by N and complex; B is N by N and real;
!> C is M by N and complex.
!>

literally just C := A * B. simple queen behavior. A is M by N and complex 🌈, B is N by N and real 🍓, C is M by N and complex 💜. that's the whole lore.

🎀 Parameters 🎀

  • M — !> M is INTEGER, !> The number of rows of the matrix A and of the matrix C., !> M >= 0. so like, how many rows A and C are serving. and bestie, M >= 0 — no negative row counts allowed, we don't do that here 🙈
  • N — !> N is INTEGER, !> The number of columns and rows of the matrix B and, !> the number of columns of the matrix C., !> N >= 0. so N is doing double duty: it's how many columns AND rows B has (she's square, iconic 👑) and how many columns C has. N >= 0 too, keep it legal ✨
  • A — !> A is COMPLEX*16 array, dimension (LDA, N), !> On entry, A contains the M by N matrix A. on entry! so this is the input era, she's incoming complex and ready to slay 💅
  • LDA — !> LDA is INTEGER, !> The leading dimension of the array A. LDA >=max(1,M). leading dimension of A. note the constraint exactly as written: LDA >=max(1,M) ⭐
  • B — !> B is DOUBLE PRECISION array, dimension (LDB, N), !> On entry, B contains the N by N matrix B. on entry, and she's DOUBLE PRECISION — real numbers only, no imaginary drama 🙅
  • LDB — !> LDB is INTEGER, !> The leading dimension of the array B. LDB >=max(1,N). leading dimension of B, and yes: LDB >=max(1,N) 🦋
  • C — !> C is COMPLEX*16 array, dimension (LDC, N), !> On exit, C contains the M by N matrix C. on exit — this is the glow-up moment, C comes back with the answer 💖
  • LDC — !> LDC is INTEGER, !> The leading dimension of the array C. LDC >=max(1,N). leading dimension of C. and here's the tea: the source literally says LDC >=max(1,N) — we're reporting it exactly as it appears, don't come for me 😭
  • RWORK — !> RWORK is DOUBLE PRECISION array, dimension (2*M*N) that's the workspace, dimension (2*M*N), doing the behind-the-scenes heavy lifting so A, B and C can have their main character moment ✨

👑 Author 👑

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

the whole squad gets credit, as they should 🫶

Definition at line 113 of file zlacrm.f. — yes, line 113, go look if you don't believe me 💀

🌈 Author (the meta one) 🌈

Generated automatically by Doxygen for LAPACK from the source code. not a human, just vibes and a doc generator doing its thing 🤖✨

lowkey reminder bestie: all those array dimension constraints and >= bounds up there are load-bearing — they're not decoration, so respect them fr fr 🎀

and that's the page! 💜 brought to you by LAPACK, Version 3.12.0, dated on that LAPACK footer energy — mwah, go multiply something complex by something real, you've got this 🌸✨

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