| 5 | 1/1 | 返回列表 |
| 查看: 1458 | 回復(fù): 7 | ||
| 當(dāng)前只顯示滿足指定條件的回帖,點擊這里查看本話題的所有回帖 | ||
Kevin1987s新蟲 (初入文壇)
|
[求助]
求大神幫我改一下下面的程序!matlab迭代法的 不知道錯在哪里!
|
|
|
x(1)=210; y(1)=-90; z(1)=-620; p(1)=0.2988; a(1)=-0.1096; b(1)=0.5996; c(1)=0.3507; d(1)=-0.3882; %%設(shè)定初值 for i=2:101; a(i-1)=-0.1096+(i-1)*0.002648; b(i-1)=0.5996+(i-1)*0.000269; c(i-1)=0.3507+(i-1)*0.004468; d(i-1)=-0.3882+(i-1)*0.007478; %%第(i-1)的角度值 A(i-1)=x(i-1)+122.9075-48*sin(p(i-1)+0.87)+62*sin(p(i-1))-(2^(-1/2))*(265+375*sin(a(i-1))); B(i-1)=y(i-1)+48.55-48*cos(p(i-1)+0.87)+62*cos(p(i-1))-(2^(-1/2))*(285+375*sin(a(i-1))); C(i-1)=z(i-1)-375*cos(a(i-1)); D(i-1)=x(i-1)-7.9075-48*sin(p(i-1)+0.87)+62*sin(p(i-1))+(2^(-1/2))*(265+375*sin(b(i-1))); E(i-1)=y(i-1)+48.55-48*cos(p(i-1)+0.87)+62*cos(p(i-1))-(2^(-1/2))*(285+375*sin(b(i-1))); F(i-1)=z(i-1)-375*cos(b(i-1)); G(i-1)=x(i-1)-7.9075-48*sin(p(i-1)+0.87)+(2^(-1/2))*(265+375*sin(c(i-1))); H(i-1)=y(i-1)-48.55-48*cos(p(i-1)+0.87)+(2^(-1/2))*(285+375*sin(c(i-1))); K(i-1)=z(i-1)-375*cos(c(i-1)); L(i-1)=x(i-1)+122.9075-48*sin(p(i-1)+0.87)-(2^(-1/2))*(265+375*sin(d(i-1))); M(i-1)=y(i-1)-48.55-48*cos(p(i-1)+0.87)+(2^(-1/2))*(285+375*sin(d(i-1))); N(i-1)=z(i-1)-375*cos(d(i-1)); P(i-1)=375*(2^(1/2)*A(i-1)*cos(a(i-1))+2^(1/2)*B(i-1)*cos(a(i-1))-2*C(i-1)*sin(a(i-1))); Q(i-1)=375*(-2^(1/2)*D(i-1)*cos(b(i-1))+2^(1/2)*E(i-1)*cos(b(i-1))+2*F(i-1)*sin(b(i-1))); R(i-1)=-375*(2^(1/2)*G(i-1)*cos(c(i-1))+2^(1/2)*H(i-1)*cos(c(i-1))+2*K(i-1)*sin(c(i-1))); S(i-1)=375*(2^(1/2)*L(i-1)*cos(d(i-1))-2^(1/2)*M(i-1)*cos(d(i-1))-2*N(i-1)*sin(d(i-1))); T(i-1)=-(A(i-1)*(48*cos(p(i-1)+0.87)-62*cos(p(i-1)))+B(i-1)*(48*sin(p(i-1)+0.87))-62*sin(p(i-1))); U(i-1)=-(D(i-1)*(48*cos(p(i-1)+0.87)-62*cos(p(i-1)))+E(i-1)*(48*sin(p(i-1)+0.87))-62*sin(p(i-1))); V(i-1)=-G(i-1)*48*cos(p(i-1)+0.87)+H(i-1)*48*sin(p(i-1)+0.87); W(i-1)=-L(i-1)*48*cos(p(i-1)+0.87)+M(i-1)*48*sin(p(i-1)+0.87); && A-W的表達(dá)式 x(i)=x(i-1)+2*A(i-1)*0.151796/P(i-1)+2*B(i-1)*0.01542/P(i-1)+2*C(i-1)*0.256127/P(i-1)+2*T(i-1)*0.428675/P(i-1); y(i)=y(i-1)+2*D(i-1)*0.151796/Q(i-1)+2*E(i-1)*0.01542/Q(i-1)+2*F(i-1)*0.256127/Q(i-1)+2*U(i-1)*0.428675/Q(i-1); z(i)=z(i-1)+2*G(i-1)*0.151796/R(i-1)+2*H(i-1)*0.01542/R(i-1)+2*K(i-1)*0.256127/R(i-1)+2*V(i-1)*0.428675/R(i-1); p(i)=p(i-1)+2*L(i-1)*0.151796/S(i-1)+2*M(i-1)*0.01542/S(i-1)+2*N(i-1)*0.256127/S(i-1)+2*W(i-1)*0.428675/S(i-1); %%所求的x y z p的表達(dá)式 [x(i),y(i),z(i),p(i)] %%輸出x y z p end x y z p初值已知,迭代100次 上面這個程序運算出來貌似不是我要的結(jié)果。。。迭代循環(huán)是不是有問題?謝謝大神! [ Last edited by Kevin1987s on 2012-11-15 at 11:03 ] |
新蟲 (初入文壇)
|
你好,我剛看了你修改過的程序,你的目的應(yīng)該是一直x,y,z,p的初值,然后經(jīng)過迭代(經(jīng)過A-W的中間處理),最后得到迭代100次后的x,y,z,p值,如果正常的話,計算結(jié)果應(yīng)該逐漸趨于某一組值,即收斂。 你的程序中a(i-1)=-0.1096+(i-1)*0.002648是不是應(yīng)該修改為: a(i-1)=-0.1096+(i-2)*0.002648,因為i=2時,a(1)=-0.1096. 修改后的程序如下: 希望對你有用。 [ Last edited by jjdg on 2012-11-16 at 10:05 ] |
新蟲 (初入文壇)
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 283分材料與化工求調(diào)劑 +12 | 羅KAKA 2026-04-02 | 12/600 |
|
|---|---|---|---|---|
|
[考研] 348求調(diào)劑 +10 | zzzzyk123 2026-04-01 | 10/500 |
|
|
[考研] 一志愿南昌大學(xué)324求調(diào)劑 +12 | hanamiko 2026-04-01 | 12/600 |
|
|
[考研] 一志愿華東理工大學(xué),080500學(xué)碩,317分,求調(diào)劑 +12 | s1145 2026-03-31 | 12/600 |
|
|
[考研] 289求調(diào)劑 +23 | 新時代材料 2026-03-27 | 26/1300 |
|
|
[基金申請] esi高被引論文是不是能對中標(biāo)有所加分和幫助呢 +4 | redcom 2026-04-01 | 4/200 |
|
|
[考研] 求生物學(xué)調(diào)劑 +8 | 15172915737 2026-04-01 | 8/400 |
|
|
[考研] 材料專碩306英一數(shù)二 +7 | z1z2z3879 2026-03-31 | 7/350 |
|
|
[考研] 085410人工智能 初試316分 求調(diào)劑 +3 | 殘星拂曙 2026-03-31 | 3/150 |
|
|
[考研] 322求調(diào)劑 +8 | 三水sss 2026-04-01 | 8/400 |
|
|
[考研] 一志愿 南京航空航天大學(xué) ,080500材料科學(xué)與工程學(xué)碩 +10 | @taotao 2026-03-31 | 11/550 |
|
|
[考研] 求調(diào)劑:085600材料與化工,考材科基,總分319 +17 | 678lucky 2026-03-31 | 21/1050 |
|
|
[考研] 070300化學(xué)專業(yè)279調(diào)劑 +10 | 哈哈哈^_^ 2026-03-31 | 10/500 |
|
|
[考研] 學(xué)碩274求調(diào)劑 +17 | Li李魚 2026-03-26 | 17/850 |
|
|
[考研] 277跪求調(diào)劑 +8 | 1915668 2026-03-27 | 13/650 |
|
|
[考研] 本科211生物醫(yī)學(xué)工程085409求調(diào)劑339分 +7 | 里子木yy 2026-03-29 | 7/350 |
|
|
[考研] 南京大學(xué)化學(xué)調(diào)劑 +11 | 景隨風(fēng) 2026-03-29 | 16/800 |
|
|
[考研] 285求調(diào)劑 +6 | AZMK 2026-03-29 | 9/450 |
|
|
[考研] 332求92調(diào)劑 +8 | 蕉蕉123 2026-03-28 | 8/400 |
|
|
[考研] 304求調(diào)劑 +6 | 曼殊2266 2026-03-27 | 6/300 |
|