# 5 麦片

050

3主题 0最佳答案

 我的目的是求q在约束条件下的极值问题，但是求的极值后，将极值点坐标反带入函数，结果却和极值不一样，误差很大，求问什么原因。 第一部分是我求的q的表达式命令，然后将q表达式复制到f函数中。 clc clear syms x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 H=20; h=10; b=5; r=20000; c=10000; f=22/180*pi; a0=25/180*pi; k=1; v1=sin(x5-x4-a0-2*f)/cos(x2-x3-x4-2*f); v01=sin(x3-x2+x5-a0-0.5*pi)/cos(x2-x3-x4-2*f); v12=v1*sin(x1+x2-x3)/sin(x1+x2+2*f); v2=v1*sin(x3+2*f)/sin(x1+x2+2*f); v03=sin(x8-x7+x10+a0-0.5*pi)/cos(x7-x8-x9-2*f); v3=sin(pi+x9-x10-a0+2*f)/cos(x7-x8-x9-2*f); v34=v3*sin(x6+x7-x8)/sin(x6+x7+2*f); v4=v3*sin(x8+2*f)/sin(x6+x7+2*f); ce=h*sin(x2)/sin(x1+x2); cd=h*sin(x1)/sin(x1+x2); cn=(cd^2+b^2-2*cd*b*cos(1.5*pi-x2))^0.5; n1=asin(b*sin(1.5*pi-x2)/cn); n2=asin(cd*sin(1.5*pi-x2)/cn); bc=cn*sin(x4-n2)/sin(x3+x4-n1-n2); bn=cn*sin(x3-n1)/sin(x3+x4-n1-n2); bf=(bn^2+H^2-2*bn*H*sin(x4))^0.5; n3=asin(H*cos(x4)/bf); n4=asin(bn*cos(x4)/bf); af=bf*cos(x5-a0-n4)/sin(x5); ab=bf*cos(a0+n4)/sin(x5); s1=0.5*h*ce*sin(x1); s2=0.5*cd*b*sin(1.5*pi-x2)+0.5*bc*cn*sin(x3-n1); s3=0.5*af*ab*sin(x5)+0.5*bn*H*cos(x4); ij=h*sin(x6)/sin(x6+x7); hj=h*sin(x7)/sin(x6+x7); nj=(b^2+ij^2-2*b*ij*cos(1.5*pi-x7))^0.5; m1=asin(ij*sin(1.5*pi-x7)/nj); m2=asin(b*sin(1.5*pi-x7)/nj); kj=nj*sin(x9-m1)/sin(x9+x8-m1-m2); nk=nj*sin(x8-m2)/sin(x8+x9-m1-m2); fk=(nk^2+H^2-2*nk*H*sin(x9))^0.5; m3=asin(H*cos(x9)/fk); m4=asin(nk*cos(x9)/fk); fm=fk*cos(a0-m4+x10)/sin(x10); mk=fk*cos(a0-m4)/sin(x10); s4=0.5*h*hj*sin(x6); s5=0.5*b*ij*sin(1.5*pi-x7)+0.5*nj*kj*sin(x8-m2); s6=0.5*H*nk*sin(0.5*pi-x9)+0.5*fm*mk*sin(x10); pr=r*((s3+s6)*cos(x5-a0-f-0.5*pi)+s1*v2*cos(x1+f)+s2*v1*cos(x3-x2+f)+s4*v4*cos(x6+f)+s5*v3*cos(x8-x7+f)); pc=c*cos(f)*(ce*v2+cd*v12+bc*v1+bn*v01+ab+mk+nk*v03+kj*v3+ij*v34+hj*v4); q=(pc-pr)/(b*v1*cos(x3-x2+f)+b*v3*cos(x8-x7+f)+k*h*v2*sin(x1+f)+k*h*v4*sin(x6+f)) 复制代码 然后复制到以下函数中 function [ f ] = my41( t ) x1=t(1); x2=t(2); x3=t(3); x4=t(4); x5=t(5); x6=t(6); x7=t(7); x8=t(8); x9=t(9); x10=t(10); f=q 复制代码 下面是约束条件以及fmincon函数 clc clear t0 = [30/180*pi;110/180*pi;110/180*pi;40/180*pi;120/180*pi;30/180*pi;110/180*pi;110/180*pi;40/180*pi;96/180*pi;30/180*pi;110/180*pi;110/180*pi;30/180*pi]; A=[ 0 1 -1 0 -1 0 0 0 0 0 0 0 0 0;...     0 -1 1 1 0 0 0 0 0 0 0 0 0 0;...     0 0 0 -1 1 0 0 0 0 0 0 0 0 0;...     -1 -1 1 0 0 0 0 0 0 0 0 0 0 0;...     0 0 -1 0 0 0 0 0 0 0 0 0 0 0;...     1 1 0 0 0 0 0 0 0 0 0 0 0 0;...     0 0 0 0 0 0 1 -1 0 -1 0 0 0 0;...     0 0 0 0 0 0 0 0 -1 1 0 0 0 0;...     0 0 0 0 0 0 -1 1 1 0 0 0 0 0;...     0 0 0 0 0 -1 -1 1 0 0 0 0 0 0;...     0 0 0 0 0 1 1 0 0 0 0 0 0 0;...     0 0 0 0 0 0 0 -1 0 0 0 0 0 0;...     -1 0 0 0 0 0 0 0 0 0 0 0 0 0;...     0 -1 0 0 0 0 0 0 0 0 0 0 0 0;...     0 0 -1 0 0 0 0 0 0 0 0 0 0 0;...     0 0 0 -1 0 0 0 0 0 0 0 0 0 0;...     0 0 0 0 -1 0 0 0 0 0 0 0 0 0;...     0 0 0 0 0 -1 0 0 0 0 0 0 0 0;...     0 0 0 0 0 0 -1 0 0 0 0 0 0 0;...     0 0 0 0 0 0 0 -1 0 0 0 0 0 0;...     0 0 0 0 0 0 0 0 -1 0 0 0 0 0;...     0 0 0 0 0 0 0 0 0 -1 0 0 0 0;...     0 0 0 0 0 0 0 0 0 0 -1 0 0 0;...     0 0 0 0 0 0 0 0 0 0 0 -1 0 0;...     0 0 0 0 0 0 0 0 0 0 0 0 -1 0;...     0 0 0 0 0 0 0 0 0 0 0 0 0 -1;...     0 0 0 0 0 0 0 0 0 0 0 1 -1 0;...     0 0 0 0 0 0 0 0 0 0 0 0 0 -1;...     0 0 0 0 0 0 0 0 0 0 0 -1 1 1;...     0 0 0 0 0 0 0 0 0 0 -1 -1 1 0;...     0 0 0 0 0 0 0 0 0 0 0 0 -1 0;...     0 0 0 0 0 0 0 0 0 0 1 1 0 0]; b=[-115/180*pi;54/180*pi;241/180*pi;0/180*pi;36/180*pi;144/180*pi;-65/180*pi;191/180*pi;54/180*pi;0/180*pi;144/180*pi;36/180*pi;0;0;0;0;0;0;0;0;0;0;0;0;0;0;18/180*pi;108/180*pi;54/180*pi;0/180*pi;36/180*pi;144/180*pi]; Aeq=[ 0 0 0 0 1 0 0 0 0 1 0 0 0 0]; beq=[216/180*pi]; [t,fval]=fmincon('my41',t0,A,b,Aeq,beq) 复制代码 困惑很久了，论文因此一直耽搁，求大神能够指点，可以发红包。

# 1292 麦片

5001500

4主题 197最佳答案
• 关注者： 82

 你如果在自定义函数里面 function [ f ] = my41( t ) x1=t(1); x2=t(2); x3=t(3); x4=t(4); x5=t(5); x6=t(6); x7=t(7); x8=t(8); x9=t(9); x10=t(10); q = (20000*cos(x5 - (137*pi)/180)*((cos((5*pi)/36 + asin((cos(x4)*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/(sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*((sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))^2*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))^2 - (40*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) + 400)^(1/2))))*cos(- x5 + (5*pi)/36 + asin((cos(x4)*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/(sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*((sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))^2*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))^2 - (40*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) + 400)^(1/2))))*((sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))^2*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))^2 - (40*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) + 400))/(2*sin(x5)) + (10*cos(x4)*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) - (10*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9 - pi/2)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + (cos((5*pi)/36 - asin((cos(x9)*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/(sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*((sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))^2*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))^2 - (40*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + 400)^(1/2))))*cos(x10 + (5*pi)/36 - asin((cos(x9)*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/(sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*((sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))^2*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))^2 - (40*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + 400)^(1/2))))*((sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))^2*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))^2 - (40*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + 400))/(2*sin(x10))) - (1274311786477943*cos((5*pi)/36 - asin((cos(x9)*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/(sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*((sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))^2*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))^2 - (40*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + 400)^(1/2))))*((sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))^2*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x7 - (3*pi)/2)*sin(x6))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))^2 - (40*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))) + 400)^(1/2))/(137438953472*sin(x10)) - (1274311786477943*cos((5*pi)/36 + asin((cos(x4)*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/(sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*((sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))^2*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))^2 - (40*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) + 400)^(1/2))))*((sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))^2*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x2 - (3*pi)/2)*sin(x1))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))^2 - (40*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))) + 400)^(1/2))/(137438953472*sin(x5)) + (20000*cos(- x2 + x3 + (11*pi)/90)*sin(x4 - x5 + (23*pi)/60)*((25*sin(x1)*sin(x2 - (3*pi)/2))/sin(x1 + x2) - (sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*sin(x4 + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25))/(2*sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))))))/cos(- x2 + x3 + x4 + (11*pi)/45) - (20000*cos(- x7 + x8 + (11*pi)/90)*sin(x9 - x10 + (199*pi)/180)*((25*sin(x6)*sin(x7 - (3*pi)/2))/sin(x6 + x7) - (sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*sin(x9 + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25))/(2*sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))))))/cos(- x7 + x8 + x9 + (11*pi)/45) + (1274311786477943*sin(x4 - x5 + (23*pi)/60)*sin(x4 + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/(137438953472*sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*cos(- x2 + x3 + x4 + (11*pi)/45)) - (1274311786477943*sin(x9 - x10 + (199*pi)/180)*sin(x9 + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/(137438953472*sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*cos(- x7 + x8 + x9 + (11*pi)/45)) + (1274311786477943*sin(x2 - x3 - x5 + (23*pi)/36)*sin(x3 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)))*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))/(137438953472*sin(x3 + x4 + asin((5*sin(x2 - (3*pi)/2))/((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2)) + asin((10*sin(x1)*sin(x2 - (3*pi)/2))/(sin(x1 + x2)*((100*sin(x1)^2)/sin(x1 + x2)^2 - (100*cos(x2 - (3*pi)/2)*sin(x1))/sin(x1 + x2) + 25)^(1/2))))*cos(- x2 + x3 + x4 + (11*pi)/45)) + (1274311786477943*sin(x7 - x8 - x10 + (13*pi)/36)*sin(x8 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)))*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))/(137438953472*sin(x8 + x9 + asin((5*sin(x7 - (3*pi)/2))/((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2)) + asin((10*sin(x6)*sin(x7 - (3*pi)/2))/(sin(x6 + x7)*((100*sin(x6)^2)/sin(x6 + x7)^2 - (100*cos(x7 - (3*pi)/2)*sin(x6))/sin(x6 + x7) + 25)^(1/2))))*cos(- x7 + x8 + x9 + (11*pi)/45)) + (6371558932389715*sin(x1 + x2 - x3)*sin(x4 - x5 + (23*pi)/60)*sin(x1))/(68719476736*cos(- x2 + x3 + x4 + (11*pi)/45)*sin(x1 + x2 + (11*pi)/45)*sin(x1 + x2)) - (6371558932389715*sin(x6 + x7 - x8)*sin(x9 - x10 + (199*pi)/180)*sin(x6))/(68719476736*cos(- x7 + x8 + x9 + (11*pi)/45)*sin(x6 + x7 + (11*pi)/45)*sin(x6 + x7)) + (6371558932389715*sin(x4 - x5 + (23*pi)/60)*sin(x2)*sin(x3 + (11*pi)/45))/(68719476736*cos(- x2 + x3 + x4 + (11*pi)/45)*sin(x1 + x2 + (11*pi)/45)*sin(x1 + x2)) - (6371558932389715*sin(x9 - x10 + (199*pi)/180)*sin(x7)*sin(x8 + (11*pi)/45))/(68719476736*cos(- x7 + x8 + x9 + (11*pi)/45)*sin(x6 + x7 + (11*pi)/45)*sin(x6 + x7)) - (1000000*sin(x4 - x5 + (23*pi)/60)*cos(x1 + (11*pi)/90)*sin(x1)*sin(x2)*sin(x3 + (11*pi)/45))/(cos(- x2 + x3 + x4 + (11*pi)/45)*sin(x1 + x2 + (11*pi)/45)*sin(x1 + x2)) + (1000000*sin(x9 - x10 + (199*pi)/180)*cos(x6 + (11*pi)/90)*sin(x6)*sin(x7)*sin(x8 + (11*pi)/45))/(cos(- x7 + x8 + x9 + (11*pi)/45)*sin(x6 + x7 + (11*pi)/45)*sin(x6 + x7)))/((5*cos(- x2 + x3 + (11*pi)/90)*sin(x4 - x5 + (23*pi)/60))/cos(- x2 + x3 + x4 + (11*pi)/45) - (5*cos(- x7 + x8 + (11*pi)/90)*sin(x9 - x10 + (199*pi)/180))/cos(- x7 + x8 + x9 + (11*pi)/45) + (10*sin(x4 - x5 + (23*pi)/60)*sin(x3 + (11*pi)/45)*sin(x1 + (11*pi)/90))/(cos(- x2 + x3 + x4 + (11*pi)/45)*sin(x1 + x2 + (11*pi)/45)) - (10*sin(x9 - x10 + (199*pi)/180)*sin(x8 + (11*pi)/45)*sin(x6 + (11*pi)/90))/(cos(- x7 + x8 + x9 + (11*pi)/45)*sin(x6 + x7 + (11*pi)/45))); f=q;复制代码 这样的话结果是一样的 disp(fval) disp( my41(t) )   -1.1792e+12   -1.1792e+12复制代码

# 5 麦片

050

3主题 0最佳答案
楼主| 发表于 2019-1-27 19:01:31 | 显示全部楼层
 TouAkira 发表于 2019-1-27 17:44 你如果在自定义函数里面 这样的话结果是一样的 为什么我把x1-x10十个变量输入到最初的q表达式中得出来的结果是不对的呢

# 5 麦片

050

3主题 0最佳答案
楼主| 发表于 2019-1-31 12:31:23 | 显示全部楼层
 哪位大神可以解答一下啊，可以有偿啊

# 3376 麦片

2主题 759最佳答案
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 颓小废的生活 发表于 2019-1-31 12:31 哪位大神可以解答一下啊，可以有偿啊 你是手工代入？ 函数对输入的值比较敏感。 只能直接使用my41(t)。 根据显示的数值手工输入的话，可能不正确。 t1=t+rand(14,1)/1e7; my41(t1) 已经相差很大。

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楼主| 发表于 2019-2-2 23:58:24 | 显示全部楼层
 maple1314168 发表于 2019-1-31 15:05 你是手工代入？ 函数对输入的值比较敏感。 只能直接使用my41(t)。 是手工带入的，只能直接看答案吗，你说的直接使用my41(t)是什么意思。另外，我用fmincon中的SQP或者内点法计算的结果相差很大，且数量级都不合理，请问如何解决？感谢回帖

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 颓小废的生活 发表于 2019-2-2 23:58 是手工带入的，只能直接看答案吗，你说的直接使用my41(t)是什么意思。另外，我用fmincon中的SQP或者内点 ... 怀疑你这模型有问题，对t的变化太敏感了。

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楼主| 发表于 2019-2-11 11:24:26 | 显示全部楼层
 jingzhaos 发表于 2019-2-3 09:00 怀疑你这模型有问题，对t的变化太敏感了。 是啊，我也很有疑惑，改变其中的任一参数，结果就会差距很大，差几十次方。但我按照别人的论文里的模型计算的也是这样

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楼主| 发表于 2019-2-11 11:43:00 | 显示全部楼层
 jingzhaos 发表于 2019-2-3 09:00 怀疑你这模型有问题，对t的变化太敏感了。 还有一个问题就是同一个参数，用fmicon里的内点法和序列二次规划法，结果也是差很多数量级

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楼主| 发表于 2019-2-16 19:09:43 | 显示全部楼层
 有没有大神能够指点下
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