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php Programming Glossary: thetaHow do I check if a longitude/latitude point is within a range of coordinates? http://stackoverflow.com/questions/11510326/how-do-i-check-if-a-longitude-latitude-point-is-within-a-range-of-coordinates `a` and `b` a.DotProduct b a.magnitude b.magnitude cos theta where theta is the angle between them. double angleBetween Vector.. `b` a.DotProduct b a.magnitude b.magnitude cos theta where theta is the angle between them. double angleBetween Vector a Vector..
Mysql query, select nearest places by a given coordinates http://stackoverflow.com/questions/14254641/mysql-query-select-nearest-places-by-a-given-coordinates latitude1 longitude1 latitude2 longitude2 unit 'Mi' theta longitude1 longitude2 distance sin deg2rad latitude1 sin deg2rad.. cos deg2rad latitude1 cos deg2rad latitude2 cos deg2rad theta distance acos distance distance rad2deg distance distance distance..
http://stackoverflow.com/questions/3606139/php-mysql-and-geolocation 2 points. function distance lat1 lon1 lat2 lon2 unit theta lon1 lon2 dist sin deg2rad lat1 sin deg2rad lat2 cos deg2rad.. deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos dist dist rad2deg dist miles dist 60 1.1515 unit strtoupper..
Great Circle Distance question http://stackoverflow.com/questions/772878/great-circle-distance-question the Great Circle Distance between two points. i.e. php theta lon1 lon2 dist sin deg2rad lat1 sin deg2rad lat2 cos deg2rad.. deg2rad lat2 cos deg2rad lat1 cos deg2rad lat2 cos deg2rad theta dist acos dist dist rad2deg dist convert degrees to distance..
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