eLon static method
Implementation
static double eLon(double t, int n) {
t /= 10;
double v = 0, tn = 1;
int n1, n2;
double m;
double c;
int pn = 1;
double n0, m0 = XL0[pn + 1] - XL0[pn];
for (int i = 0; i < 6; i++, tn *= t) {
n1 = XL0[pn + i].floor();
n2 = XL0[pn + 1 + i].floor();
n0 = n2 * 1.0 - n1;
if (n0 == 0) {
continue;
}
if (n < 0) {
m = n2 * 1.0;
} else {
m = (3 * n * n0 / m0 + 0.5).floorToDouble() + n1;
if (i != 0) {
m += 3;
}
if (m > n2) {
m = n2 * 1.0;
}
}
c = 0;
for (int j = n1; j < m; j += 3) {
c += XL0[j] * math.cos(XL0[j + 1] + t * XL0[j + 2]);
}
v += c * tn;
}
v /= XL0[0];
double t2 = t * t;
v +=
(-0.0728 - 2.7702 * t - 1.1019 * t2 - 0.0996 * t2 * t) / SECOND_PER_RAD;
return v;
}