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To: Zsh Users <zsh-users@zsh.org>
From: Ray Andrews <rayandrews@eastlink.ca>
Subject: efficiency
Message-id: <b6cf1ad2-056f-c093-fef8-74c995ee6dbd@eastlink.ca>
Date: Fri, 03 Feb 2017 18:55:53 -0800
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Gentlemen:


echo "\nSTOP TIMER. REAL RUNTIME: $((now-start)) MILISECONDS 
($(((now-start)/60000)):${(l:2::0:)$(((now-start)/1000%60))}) $@"

integer -x base=$(((now-start)/1000))
echo "\nSTOP TIMER. REAL RUNTIME: $((now-start)) MILISECONDS 
($(($base/60)):${(l:2::0:)$(($base%60))}) $@"

... is there any real advantage to the second line?  Obviously I'm 
trying to cut down on duplicate calculation, and in the real world it 
hardly matters, but as a point of principal, which is better?