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From: Artur Penttinen <arto-p@yandex.ru>
To: Emanuel Berg <moasen@zoho.com>,
	"zsh-users@zsh.org" <zsh-users@zsh.org>
In-Reply-To: <8636y25hm7.fsf@zoho.com>
References: <8636y25hm7.fsf@zoho.com>
Subject: Re: 1.75 -> 1-3/4
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Date: Tue, 05 Jun 2018 06:26:17 +0300
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05.06.2018, 01:27, "Emanuel Berg" <moasen@zoho.com>:
> Is this [1] the correct algorithm/a good
> implementation? It translates 1.75 into 1-3/4
> at least :P
>
> ths () {
>     local value=$1
>     local denom=${2:-16}
>     local whole=$(( int(floor($value)) ))
>     local rest=$(( $value - $whole ))
>     local frac=$(( int(rint($rest * $denom)) ))
>     if (( $(( $frac % 2 )) == 0 )); then
>         local new_denom=$(( denom / 2 ))
>         ths $value $new_denom
>     else
>         echo $whole-${frac}/${denom}
>     fi
> }
> # $ ths 1.75
> # 1-3/4
>
> [1] http://user.it.uu.se/~embe8573/conf/.zsh/math

  # ths 2 
  ths:8: maximum nested function level reached; increase FUNCNEST?

-- 
wbw, artur