【Java开源代码栏目提醒】:网学会员,鉴于大家对Java开源代码十分关注,论文会员在此为大家搜集整理了“d4r28F.java”一文,供大家参考学习!
public class d4r28F
{
double ex(double x)
{
double r1, r2, r3, r4, r5, r6, t1, t2, t3, t4, s1, s2, s3, s4, temp, aaa, y, w;
r1 = 0.00107857; r2 = -0.00976004;
r3 = 0.05519968; r4 = -0.24991055;
r5 = 0.99999193; r6 = -0.57721566;
t1 = 8.5733287401; t2 = 18.059016973;
t3 = 8.6347608925; t4 = 0.2677737343;
s1 = 9.5733223454; s2 = 25.6329561486;
s3 = 21.0996530827; s4 = 3.9584969228;
if (x < 1.0)
{
aaa = (r1 * x + r2) * x + r3;
temp = ((aaa * x + r4) * x + r5) * x + r6 - Math.log(x);
}
else
{
y = (((x + t1) * x + t2) * x + t3) * x + t4;
w = (((x + s1) * x + s2) * x + s3) * x + s4;
temp = (y / w) / (Math.exp(x) * x);
}
return temp;
}
}