:ڽŻСֵ߷ʱ,ܻ(ʽ)˵ʽ,µıʽ
     f=((x(i)^2+x(i+1)*2)/i)     i=1,2,3,n

:ԷűʽSumMulΪʶֻŻСֵ߷ʱá

1ۼ

ʽ:
Sum(f,i,a,b,s)
Sum(f,i,a,b)
Sum(f,i,b)

f:ıʽ
i:±
a:±ʼֵ,ĬΪ1
b:±ֵ
s:ÿ±仯ķ,ĬΪ1

:Ҫִ

Sum(f,i,a,b,s)
{
   i=a
   t=0
   While(i<b)
   {
     t=t+f
     i=i+s
   }
   Return t
}

ע:Sumıʽ֧Ƕ


:
(1)  f(x)=0-(x(i)*Sin(Sqrt(Abs(x(i))))) Сֵ,x30,i130.ÿxķΧ[-500,500].
//´뼴

x="x(30)"; //עĶʽ
f="Sum(x(i)*Sin(Sqrt(Abs(x(i)))),i,1,30)"; //Sum
[x0,m]=nlinSolveMinPSO(f,x,5,256,10000,12,500,-500); //Ӧ

(2)  f(x)=0-ơ(j*Sin((j+1)*x(i)+j)) Сֵ,x30,i130,j15,ÿxķΧ[-10,10].
//´뼴

x="x(30)"; //עĶʽ
f="Sum(Sum(j*Sin((j+1)*x(i)+j),j,1,5),i,1,30)"; //Sum,עǶ׵ʹ÷
[x0,m]=nlinSolveMinPSO(f,x,5,256,10000,12,10,-10); //Ӧ


2۳

ʽ:
Mul(f,i,a,b,s)
Mul(f,i,a,b)
Mul(f,i,b)

f:ıʽ
i:±
a:±ʼֵ,ĬΪ1
b:±ֵ
s:ÿ±仯ķ,ĬΪ1

:Ҫִ

Mul(f,i,a,b,s)
{
   i=a
   t=1
   While(i<b)
   {
     t=t*f
     i=i+s
   }
   Return t
}

ע:Mulıʽ֧Ƕ

:MulSumͬ,ֻ֧Ƕ.