Length of an arc between two angles: Difference between revisions
→{{header|Factor}}
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=={{header|AWK}}==
<lang AWK>
# syntax: GAWK -f LENGTH_OF_AN_ARC_BETWEEN_TWO_ANGLES.AWK
# converted from PHIX
BEGIN {
printf("%.7f\n",arc_length(10,10,120))
exit(0)
}
function arc_length(radius,angle1,angle2) {
return (360 - abs(angle2-angle1)) * 3.14159265 / 180 * radius
}
function abs(x) { if (x >= 0) { return x } else { return -x } }
</lang>
{{out}}
<pre>
43.6332313
</pre>
=={{header|Factor}}==
<lang factor>USING: kernel math math.constants math.trig prettyprint ;
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