# Arc Length: Measure the length of a circle arc

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 Version License Categories arclength 1.0 Freeware Algorithms, PHP 5, Math
Description Author

This class can be used measure the length of arc of circle that contains 3 given points.

It takes the coordinates of three points and tries to fit them in a arc of circle. Then it calculates the length of that arc.

Name: Classes: Jean Pierre Daviau `` 1 package by Jean Pierre Daviau Canada 69 3378 78 in Canada 1198 32 in Canada

Details
 ``` PHP5 This class calculates the arc of three points on a circle. Call the class with -help argv[1] On the command line: php -check-f arcLength.php 0 14 73.5 9 96 0 [arc] => 98.554522503617 Usage: a) ligne de commande: php -check-f arcLength.php 0 14 73.5 9 96 0 4 >si y 1=y3=0 augmenter l'ordonnée de [ex:4] b) arcLength.php 0 14 73.5 9 96 0 4 >si y 1=y3=0 augmenter l'ordonnée de [ex:4] c) si y 1=y3=0 augmenter l'ordonnée de [ex:4] est facultatif. . . .(0,14) . . . . . . . . . . . . (75.5, 9) . . . . . . . . . . . . . . . . (73.12,9). . . ... . . . . . . .. . . . .(96,0) ................................... (0,0) (97.02,0) php -check-f arcLength.php 0 0 73.12 9 97.02 0 14 [arc] => 98.705349301392 php -check-f arcLength.php 0 14 73.5 9 96 0 [arc] => 98.554522503617 php -check-f arcLength.php 1 4 26 2 51 0 [arc] => 51.629657987267 ========================================= If you create an improved versionhttp://www.jeanpierredaviau.com/feedback.htm```
 Screenshots
 Files
File Role Description
arcLength.php Class arc calculator