A score of years ago our mathematical simulation group heard a presentation on wavelets.  The speaker somehow used wavelets to choose from the available coffee beans the ratios of varieties to produce particular desirable flavors.  The coffee company wanted truth from

   assert (ARABICA ([: =&taste mix) INVENTORY)


Incidentally, 13!:8 raises an error, which may help with recent tail recursion issues.

   assert
0 0 $ 13!:8^:((0 e. ])`(12"_))

Gotta love the 13!: adverb association with errors.

Date: Mon, 8 Jan 2018 21:06:26 -0500
From: Raul Miller<[email protected]>
To: Programming forum<[email protected]>
Subject: Re: [Jprogramming] Haar wavelet
Message-ID:
        <cad2jou-c56u8aem7oltgkpbx207zqsgxouqu+v187yrachm...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

Actually, I was thinking of moving on to other wavelets, Like,
forinstance, the Hadamard transform, whose normalized matrix was

Kp=: (%%:2) * ,/@:(,./"3)@:(*/)
H1=: 1 1,:1 _1
Hm=: H1&Kp@]^:[&(,.%:2)

That said, I still haven't figured out a use for these things...

Thanks,

-- Raul

----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

Reply via email to