Lines Matching full:atan2
1256 /* atan2(y,x)
1258 * 1. Reduce y to positive by atan2(y,x)=-atan2(-y,x).
1265 * ATAN2((anything), NaN ) is NaN;
1266 * ATAN2(NAN , (anything) ) is NaN;
1267 * ATAN2(+-0, +(anything but NaN)) is +-0 ;
1268 * ATAN2(+-0, -(anything but NaN)) is +-pi ;
1269 * ATAN2(+-(anything but 0 and NaN), 0) is +-pi/2;
1270 * ATAN2(+-(anything but INF and NaN), +INF) is +-0 ;
1271 * ATAN2(+-(anything but INF and NaN), -INF) is +-pi;
1272 * ATAN2(+-INF,+INF ) is +-pi/4 ;
1273 * ATAN2(+-INF,-INF ) is +-3pi/4;
1274 * ATAN2(+-INF, (anything but,0,NaN, and INF)) is +-pi/2;
1282 double atan2(double y, double x) {
