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/redis-3.2.3/deps/geohash-int/
H A Dgeohash_helper.c104 double difference_longitude = asin(sin(distance) / cos(latr)); in geohashBoundingBox() local
105 min_longitude = lonr - difference_longitude; in geohashBoundingBox()
106 max_longitude = lonr + difference_longitude; in geohashBoundingBox()