Math::GSL::Poly(3pm)

💖 NAME 💖

Math::GSL::Poly — bestie, this is the module that solves and evaluates polynomials. That's the whole vibe. Periodt. ✨

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🦋 SYNOPSIS 🦋

okay so here's the little taste test, literally copy-paste core:

use Math::GSL::Poly qw/:all/;
my ($a,$b,$c) = (1,6,9);
my ($x0, $x1) = (0,0);
my $num_roots = gsl_poly_solve_quadratic( $a, $b, $c, \$x0, \$x1);
print "${a}*x**2 + ${b}*x + $c contains $num_roots roots which are $x0 and $x1. \n";

look at that. immaculate. 🫶

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🌈 DESCRIPTION 🌈

here's the full roster of everything this module hands you, no gatekeeping:

• gsl_poly_eval(@values, $length, $x) — evaluates a polynomial with real coefficients for the real variable $x. $length is how many elements are chillin' inside @values. The function returns a complex number. 💅
• gsl_poly_complex_eval(@values, $length, $z) — evaluates a polynomial with real coefficients for the complex variable $z. $length is how many elements are inside @valuesi. (yes, that's literally how it's written in the source docs, don't come for me 🙈) The function returns a complex number.
• gsl_complex_poly_complex_eval(@values, $length, $z) — evaluates a polynomial with real coefficients for the complex variable $z. $length is how many elements are inside @values. And, iconic behaviour, $length is how many elements are inside @values. The function returns a complex number.
• gsl_poly_dd_init — no extra notes given, she's mysterious like that 🧚
• gsl_poly_dd_eval — same energy, no description attached ✨
• gsl_poly_dd_taylor — also just vibing here with no write-up 🌸
• gsl_poly_solve_quadratic( $a, $b, $c, \$x0, \$x1) — finds the real roots of the quadratic equation $a*x**2+$b*x+$c = 0. It returns the number of real roots (either zero, one or two), and the real roots come back through $x0, $x1 and $x2, which are dereferenced. 👑
• gsl_poly_complex_solve_quadratic — listed, no description given, she's booked and busy 💜
• gsl_poly_solve_cubic($a, $b, $c, \$x0, \$x1, \$x2) — finds the real roots of the cubic equation x**3+$a*x**2+$b*x+$c = 0. It returns the number of real roots (either one or three), and the real roots come back through $x0, $x1 and $x2, which are dereferenced. 🔥
• gsl_poly_complex_solve_cubic — listed, no description given, that's the whole lore ⭐
• gsl_poly_complex_workspace_alloc($n) — allocates space for a gsl_poly_complex_workspace struct, plus a workspace suitable for solving a polynomial with $n coefficients using the routine gsl_poly_complex_solve. 🎀
• gsl_poly_complex_workspace_free($w) — frees all the memory associated with the workspace $w. be a good citizen and call this, bestie, memory doesn't free itself 😭
• gsl_poly_complex_solve() — listed, no description given. lowkey the main character of the workspace functions above, but okay, we move 💀

for more info on the functions, we refer you to the GSL official documentation: http://www.gnu.org/software/gsl/manual/html_node/ 🌐

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👑 AUTHORS 👑

Jonathan "Duke" Leto <jonathan@leto.net> and Thierry Moisan <thierry.moisan@gmail.com> — the legends fr fr 🫶

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💜 COPYRIGHT AND LICENSE 💜

Copyright (C) 2008-2024 Jonathan "Duke" Leto and Thierry Moisan

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. slay. ✨

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and that's a wrap, bestie 🎀 this whole page dropped as Math::GSL::Poly(3pm), version perl v5.42.3, dated 2026-08-20. stan. 💅