lis_matvec(3)

✨ lis_matvec — the matrix-vector product girlie ✨

okay bestie, you're in the Lis Library Functions section of the manual and this is the page for lis_matvec(3). it's giving "one matrix, one vector, one iconic little multiplication" and honestly? it ate. 💅

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💖 NAME 💖

lis_matvec — calculate the matrix vector product

like literally that's the whole job. one function, one vibe, no cap. 🦋

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🌸 SYNOPSIS 🌸

#include "lis.h"

LIS_INT lis_matvec(LIS_MATRIX A, LIS_VECTOR x, LIS_VECTOR y);

yes you have to include "lis.h" first, bestie, don't skip that part, it's the entry fee 🎀

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✨ DESCRIPTION ✨

Calculate the matrix vector product y = Ax.

that's it. that's the function. you hand it a matrix and a vector and it hands you back the product, no drama, no side quests, main character energy only 👑

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💜 INPUT 💜

• A — The matrix. the big one. the grid. the whole structure of the operation fr fr 🧚
• x — The vector. the one getting multiplied. she's the passenger princess in this equation 💖

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🌈 OUTPUT 🌈

• y — Ax. that's the product, that's the tea, that's the result of the whole situation ✨

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🫶 EXIT STATUS 🫶

The following exit values are returned:

• 0 — The process is normally terminated. slay. everything went off without a hitch, we love to see it 🎉
• unspecified — An error occurred. 😭 not the error. something went wrong and honestly we don't have the specifics, so like, vibe check your inputs, bestie 💀

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👑 SEE ALSO 👑

• lis(3)
• http://www.ssisc.org/lis/

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that's the whole page, you understood it, periodt. go multiply something. 💅

cute little sign-off: this page is lis_matvec(3) from the Lis Library Functions, and the man page itself is dated 6 Sep 2012. vintage but still serving. 🎀✨