Lines Matching refs:atan2
50 * atan2(y,x)
53 * asin(x) = atan2(x,sqrt(1-x*x)); for better accuracy, 1-x*x is
63 * 1) If atan2() uses machine PI, then
66 * and PI is the exact pi rounded to machine precision (see atan2 for
83 * 2) If atan2() uses true pi, then
109 return(atan2(x,sqrt(one-x*x)));
111 { t=one-s; s=t+t; return(atan2(x,sqrt(s-t*t))); }
131 * atan2(y,x)
136 * acos(x) = 2*atan2( / -------- , 1 ) .
144 * 1) If atan2() uses machine PI, then
147 * and PI is the exact pi rounded to machine precision (see atan2 for
164 * 2) If atan2() uses true pi, then
181 t=atan2(sqrt((one-x)/(one+x)),one);
183 t=atan2(one,0.0); /* t = PI/2 */
Indexes created Mon Oct 20 11:09:49 GMT 2025