lis_vector_axpyz(3f)

✨ NAME ✨

lis_vector_axpyz — bestie, it calculates the sum of the vectors 💖

This one lives in the Lis Library Functions manual, section 3f, and it's giving very much "one job and it does it flawlessly."

🎀 SYNOPSIS 🎀

subroutine lis_vector_axpyz(LIS_SCALAR alpha, LIS_VECTOR x, LIS_VECTOR
y, LIS_VECTOR z, LIS_INTEGER ierr);

Like. That's it. That's the whole call. Four vectors-ish things and an error code, slay 🫶

🌸 DESCRIPTION 🌸

Okay so here's the tea: this routine calculates the sum of the vectors, and the sum it calculates is literally

z = alpha * x + y

That's the whole vibe. You hand it a scalar, you hand it two vectors, it does the math and drops the answer into z. No cap, no side quests, no surprises. Iconic behavior honestly ✨

💜 INPUT 💜

• alpha — the scalar value, aka the lil number doing the multiplying 🌸
• x, y — the vectors, the main characters of this whole operation 👑

🦋 OUTPUT 🦋

• z — alpha * x + y 💅

Not me emphasizing this again but yes, z comes out of here holding exactly alpha * x + y. That's the entire deliverable. Periodt.

🌈 SEE ALSO 🌈

• lis(3)
• http://www.ssisc.org/lis/

Okay bestie that's the whole page, go forth and axpyz responsibly 🧚💖

This lil love letter to linear algebra comes from the Lis Library Functions manual, dated 28 Aug 2014 — mwah, obsessed, no notes 💅✨