ref: 78df5c7c2fa2d3c7cfb5d6f2458bb8fe025a578e
parent: 0e26236bf2493b8c0705e26ce4739d1423739db8
author: aiju <aiju@phicode.de>
date: Sat Jun 27 18:00:33 EDT 2015
added approx(1)
--- /dev/null
+++ b/rc/bin/approx
@@ -1,0 +1,23 @@
+#!/bin/rc
+if(! ~ $#* 3){+ echo usage: approx ratio min max
+ exit usage
+}
+echo $1 $2 $3 | awk '
+{+ y=$1;
+ min=$2;
+ max=$3;
+ for(i = min; i <= max; i++){+ k = int(y*i+0.5);
+ z = (k/i/y-1)*100;
+ if(z < 0)
+ z = -z;
+ if(i == min || z < zm){+ zm = z;
+ printf("%d/%d\t%g\t%.2g%%\n", k, i, k/i, z);+ }
+ }
+ exit
+}
+'
--
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