shithub: riscv

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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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