Math::GSL::DHT(3pm)

👑 Math::GSL::DHT — Discrete Hankel Transforms 💖

okay so bestie, welcome to the Math::GSL::DHT page (that's the Math::GSL::DHT(3pm) manual, in case you're keeping track of your tabs 💅). This is your go-to for Discrete Hankel Transforms, and yes it is exactly as niche and exactly as fun as it sounds. Let's get into it 🦋

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✨ SYNOPSIS ✨

use Math::GSL::DHT qw/:all/;

that's it. that's the whole vibe. one line, everything imported, we love her for that 🌸

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📖 DESCRIPTION 📖

Here is a list of all the functions included in this module (and when I say all, I mean ALL, we're not skipping anybody here, no cap 🫶):

• gsl_dht_alloc($size) — this one allocates a Discrete Hankel transform object, and it's gonna be of size $size. that's its whole job and it does it beautifully ✨
• gsl_dht_new($size, $nu, $xmax) — allocates a Discrete Hankel transform object of size $size and initializes it for the given values of $nu and $xmax. it's giving "alloc but make it curated" 💖
• gsl_dht_init($t, $nu, $xmax) — initializes the transform $t for the given values of $nu and $xmax. like gsl_dht_new but you already have your object and you're just doing a lil glow-up on it 🎀
• gsl_dht_x_sample($t, $n) — returns the value of the $n-th sample point in the unit interval, (j_{\nu,n+1}/j_{\nu,M}) X. These are the points where the function f(t) is assumed to be sampled. important little guys, don't sleep on them 😭
• gsl_dht_k_sample($t, $n) — returns the value of the $n-th sample point in "k-space", j_{\nu,n+1}/X. yes queen, k-space, we're going there 🪐
• gsl_dht_free($t) — frees the transform $t. letting her go, respectfully 🕊️
• gsl_dht_apply — and that's the whole entry. that's it. that's what we know. iconic cryptic behaviour honestly 💀

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🍓 EXAMPLES 🍓

this section is empty in the original, bestie — I'm not gonna make stuff up and pretend it was always here. when the examples arrive they will be gorgeous, but today we just note the empty throne 👑

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💜 AUTHORS 💜

Jonathan "Duke" Leto <jonathan@leto.net> and Thierry Moisan <thierry.moisan@gmail.com> — the two icons who built this whole thing, we say thank you 🫶

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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.

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⏰ and that's the whole page, babe! cute lil sign-off time: this is perl v5.42.3, dated 2026-08-20, and the page is Math::GSL::DHT(3pm). go transform something discretely and hankelly 💅✨🌸