使用fzero出现的问题

lupkpu9

程序如下function P=Price(V,r,vol_i,t00,t_i,K_i,init)
format long
t=t_i;
7 N7 ?  ^: F" x, ~$ ?% @K=K_i;
vol=vol_i;
* T6 q7 y7 R- w: p8 m- A4 ^n=length(t);% computes the dimension of the problem
' X& F9 Q$ x' j) Oqq=init;
" }& d) H! k" C7 y1 C; O. q( hC=zeros(n,1);
( t( t/ ]- `) t6 y" o( cinitial=K(n,1)*qq;
+ k' T) Z% m9 w# c4 nVbar=zeros(n,1);
N=zeros(n,n);
N1=zeros(n,n);
a=zeros(n,n);
* ?- q# j% K! L, O) S5 |a0=-inf.* ones(n,n);
: x" a, w. T* f& Zb=zeros(n,n);
b0=-inf.* ones(n,n);
- O, n) L- [0 bh=zeros(n,n);
2 B. ?% U! O  R0 v( K/ Z1 [4 Ahl=zeros(n,n);
& R3 ?- s/ m; S7 ^8 TVbar(n,1)=K(n,1);
for s=n:-1:2
   current=s-1;
   t0=t(current,1);
   options=optimset('Display','off');
   Vbar(s-1,1)=fzero('@Price_ss',initial,options,s,Vbar,r,vol,t0,t,K);   %在这一步出错
' s/ ^  W2 t! L) v8 @: Z8 u   initial=Vbar(s-1,1)*qq;
[c1,h1,al,b1,N1,w2,wl]=Price_s(V,s,Vbar,r,vol,t0,t,K);
C(s,1)=c1;
  V0 L# H0 u4 O, r' y% o/ kh(s,=hl;
+ q* u3 v' {5 p0 S- [a(s,=al;
; z! q% y+ M, `& f6 S$ L$ E2 y/ Ob(s,=b1;
N(s,:)=N1;
end
* i, ^9 a, o  u5 |. {" ]k=1;
[c2,h2,a2,b2,N2,w4,w3]=Price_s(V,k,Vbar,r,vol,t00,t,K);
. A( F" b* j2 H2 Z" m% D- f8 bC(k,1)=c2;
& U1 k; n  d# v. `, Q, lh(k,:)=h2;
a(k,:)=a2;
b(k,:)=b2;
N(k,:)=N2;
P=C(k,1);
7 {6 ~. g" c+ L9 \8 U
2 `0 K8 a1 x# l) Q  U1 K
+ W  w6 O6 I2 Q% U% a* L/ R报错
2 I" c; L$ [9 ^/ H未定义与 'function_handle' 类型的输入参数相对应的运算符 '=='。
) R  {( n, J9 ]8 r! |# v! R5 K出错 fzero (line 314)
    if fx == 0
! ]8 F* i0 r4 M) ]# w出错 Price (line 24)
   Vbar(s-1,1)=fzero('@Price_ss',initial,options,s,Vbar,r,vol,t0,t,K);

/ n4 w- F! O7 P6 |1 K% C( Q+ |7 X请大神指教

shuddkk

帮你顶一下

kekek

楼主发一下完整代码

zzz.dan

nkkopd

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