|
本帖最后由 愚工688 于 2024-2-8 10:57 编辑
总结偶数的连乘式积的误差规律,并不需要什么偶数的分类,就能够比较高精度的计算连续的偶数的素对,这是不容置疑的。
以今天日期的十倍起始的连续偶数的素对数量的计算:
G(202402080) = 1089420 ;Sp( 202402080 *)≈ 1089017 , jd ≈0.99963;
G(202402082) = 408066 ;Sp( 202402082 *)≈ 408381.4 , jd ≈1.00077;
G(202402084) = 409098 ;Sp( 202402084 *)≈ 409030.6 , jd ≈0.99984;
G(202402086) = 817726 ;Sp( 202402086 *)≈ 816762.8 , jd ≈0.99882;
G(202402088) = 490188 ;Sp( 202402088 *)≈ 490057.7 , jd ≈0.99973;
G(202402090) = 605704 ;Sp( 202402090 *)≈ 605009.5 , jd ≈0.99885;
G(202402092) = 818129 ;Sp( 202402092 *)≈ 817774.9 , jd ≈0.99957;
G(202402094) = 408710 ;Sp( 202402094 *)≈ 408381.4 , jd ≈0.99920;
G(202402096) = 454079 ;Sp( 202402096 *)≈ 453322.9 , jd ≈0.99834;
G(202402098) = 865029 ;Sp( 202402098 *)≈ 864807.7 , jd ≈0.99974;
start time =12:46:03,end time=12:46:12 ,time use =
Sp( 202402080 *) = 1/(1+ .1264 )*( 202402080 /2 -2)*p(m) ≈ 1089017 , k(m)= 2.666667
Sp( 202402082 *) = 1/(1+ .1264 )*( 202402082 /2 -2)*p(m) ≈ 408381.4 , k(m)= 1
Sp( 202402084 *) = 1/(1+ .1264 )*( 202402084 /2 -2)*p(m) ≈ 409030.6 , k(m)= 1.00159
Sp( 202402086 *) = 1/(1+ .1264 )*( 202402086 /2 -2)*p(m) ≈ 816762.8 , k(m)= 2
Sp( 202402088 *) = 1/(1+ .1264 )*( 202402088 /2 -2)*p(m) ≈ 490057.7 , k(m)= 1.2
Sp( 202402090 *) = 1/(1+ .1264 )*( 202402090 /2 -2)*p(m) ≈ 605009.5 , k(m)= 1.481481
Sp( 202402092 *) = 1/(1+ .1264 )*( 202402092 /2 -2)*p(m) ≈ 817774.9 , k(m)= 2.002478
Sp( 202402094 *) = 1/(1+ .1264 )*( 202402094 /2 -2)*p(m) ≈ 408381.4 , k(m)= 1
Sp( 202402096 *) = 1/(1+ .1264 )*( 202402096 /2 -2)*p(m) ≈ 453322.9 , k(m)= 1.110048
Sp( 202402098 *) = 1/(1+ .1264 )*( 202402098 /2 -2)*p(m) ≈ 864807.7 , k(m)= 2.117647
若控制好修正系数μ值,那么我们可以轻易的得到偶数素对的下界计算值:
inf( 202402080 ) = 1/(1+ .1345 )*( 202402080 /2 -2)*p(m) ≈ 1081241.7 ;精度=0.99249;
inf( 202402082 ) = 1/(1+ .1345 )*( 202402082 /2 -2)*p(m) ≈ 405465.7 ;精度= 0.99363;
inf( 202402084 ) = 1/(1+ .1345 )*( 202402084 /2 -2)*p(m) ≈ 406110.3 ;精度= 0.99270;
inf( 202402086 ) = 1/(1+ .1345 )*( 202402086 /2 -2)*p(m) ≈ 810931.3 ;精度= 0.99169;
inf( 202402088 ) = 1/(1+ .1345 )*( 202402088 /2 -2)*p(m) ≈ 486558.8 ;精度= 0.99260;
inf( 202402090 ) = 1/(1+ .1345 )*( 202402090 /2 -2)*p(m) ≈ 600689.9 ;精度= 0.99172;
inf( 202402092 ) = 1/(1+ .1345 )*( 202402092 /2 -2)*p(m) ≈ 811936.2 ;精度= 0.99243;
inf( 202402094 ) = 1/(1+ .1345 )*( 202402094 /2 -2)*p(m) ≈ 405465.7 ;精度= 0.99206;
inf( 202402096 ) = 1/(1+ .1345 )*( 202402096 /2 -2)*p(m) ≈ 450086.3 ;精度= 0.99121;
inf( 202402098 ) = 1/(1+ .1345 )*( 202402098 /2 -2)*p(m) ≈ 858633.2 ;精度= 0.99261;
inf( 202402100 ) = 1/(1+ .1345 )*( 202402100 /2 -2)*p(m) ≈ 565435.3 ;精度=
inf( 202402102 ) = 1/(1+ .1345 )*( 202402102 /2 -2)*p(m) ≈ 522038.2 ;精度=
素对真值:
G(202402080) = 1089420
G(202402082) = 408066
G(202402084) = 409098
G(202402086) = 817726
G(202402088) = 490188
G(202402090) = 605704
G(202402092) = 818129
G(202402094) = 408710
G(202402096) = 454079
G(202402098) = 865029
|
|