想要计算一个定价公式，所用变量已知，Smax=50;S0=50;r=0.1;q=0;v=0.4^2;T=0.25;
编写程序为function [] =floating_lookback_put_option2()
%Example 24-1
%floating lookback put option
clear,clc

function result=(log(Smax/S0)+(-r+q+v/2)*T)/(v*T)^(1/2)
result=b1

function result=b1-(v*T)^(1/2)
result=b2

function result= (log(Smax/S0)+(r-q-v/2)*T)/(v*T)^(1/2)
result=b3

function result=(2*(r-q-v/2)*log(Smax./S0))/v
result=Y2

function result=floating_lookback_put_option2(Smax,S0,r,q,v,T)
result=Smax*exp(-r*T)*(normcdf(b1)-v*exp(Y2)*normcdf(-b3)/(2*(r-q)))+S0*exp(q*T)*v*exp(Y2)*normcdf(-b2)/(2*(r-q))-S0*exp(-q*T)*normcdf(b2)


为什么一直提示floating_lookback_put_option2
??? Error: File: D:\matlab\work\floating_lookback_put_option2.m Line: 6 Column: 17
Unbalanced or misused parentheses or brackets.

单独把第六行拿出来运行，木有问题的啊！！！
(log(Smax/S0)+(-r+q+v/2)*T)/(v*T)^(1/2)

ans =

   -0.0250