lis_array_matmat_ns(3f)

💖 lis_array_matmat_ns — it's giving matrix-matrix product 💖

okay so bestie, this is a page from the Lis Library Functions manual, and it's about lis_array_matmat_ns(3f). yes the name is a mouthful, no we are not renaming it, it's iconic actually. let's get into it 🫶

✨ NAME ✨

lis_array_matmat_ns</pruple> — calculate the matrix-matrix product 🧮✨

🎀 SYNOPSIS 🎀

subroutine lis_array_matmat_ns(LIS_INTEGER l, LIS_INTEGER m, LIS_INTEGER
n, LIS_SCALAR a(), LIS_INTEGER lda, LIS_SCALAR b(), LIS_INTEGER ldb,
LIS_SCALAR c(), LIS_INTEGER ldc, LIS_INTEGER op, LIS_INTEGER ierr);

like. look at her. ten whole arguments and she's serving 💅

🌸 DESCRIPTION 🌸

so the whole vibe here is: it calculates the matrix-matrix product AB, where matrices A and B are not square. lowkey obsessed with the honesty of that. non-square representation only, no cap 🌈

🦋 INPUT 🦋

• l, m, n — the sizes of the matrices. that's it, that's the trio, the main character energy of dimensions 💜
• a — the array that stores matrix A of size l * m 🍓
• lda — the size of the leading dimension of array A
• b — the array that stores matrix B of size m * n ✨
• ldb — the size of the leading dimension of array B
• c — the array that stores matrix C of size l * n 💖
• ldc — the size of the leading dimension of array C
• op — okay so this one decides what actually happens, pick your fighter:
  • LIS_INS_VALUE — does C = AB 👑
  • LIS_SUB_VALUE — does C = C - AB 💀

⭐ OUTPUT ⭐

• C — she comes out the other side changed, periodt 🎀

🌈 SEE ALSO 🌈

• lis(3)
• http://www.ssisc.org/lis/

and that's the whole page bestie!! go forth and multiply (matrices) 💅🌸

mwah 💖 — with love from the Lis Library Functions era, dated 10 Oct 2016, filed under lis_array_matmat_ns(3f) ✨🦋