[MATLAB基础] 为什么说我的数组超出范围啊？！！请大侠指点啊

[janezh]

function NdTransferCoN(B)
syms x y m n u v;
[m,n]=solve(B{2,1}(1)+B{2,3}(1)-(B{2,1}(1)+B{2,3}(1)-B{2,2}(1))*normcdfa(m,B{1,3}(1),B{1,4}(1))-B{1,1}(1)...
+(B{2,1}(2)+B{2,3}(2)-B{2,2}(1)-B{2,4}(1))*(int(int(normpdfa(x,B{1,3}(1),B{1,4}(1))*normpdfa(y,B{1,3}(2),B{1,4}(2)),y,m+n-x,inf),x,0,m))...
+(B{2,1}(1)+B{2,3}(1)-B{2,2}(2)-B{2,4}(2))*(int(int(-normpdfa(x,B{1,3}(1),B{1,4}(1))*normpdfa(y,B{1,3}(2),B{1,4}(2)),x,m,m+n-y),y,0,n)),...
B{2,1}(2)+B{2,3}(2)-(B{2,1}(2)+B{2,3}(2)-B{2,2}(2))*normcdfa(n,B{1,3}(2),B{1,4}(2))-B{1,1}(1)...
+(B{2,1}(2)+B{2,3}(2)-B{2,2}(1)-B{2,4}(1))*(int(int(-normpdfa(x,B{1,3}(1),B{1,4}(1))*normpdfa(y,B{1,3}(2),B{1,4}(2)),y,n,m+n-x),x,0,m))...
+(B{2,1}(1)+B{2,3}(1)-B{2,2}(2)-B{2,4}(2))*(int(int(normpdfa(x,B{1,3}(1),B{1,4}(1))*normpdfa(y,B{1,3}(2),B{1,4}(2)),x,m+n-y,inf),y,0,n)));
m=double(m)
m=double(n)



其中，
function pdf1=normpdfa(x,u,sigma)
syms t
x=sym(x);
pdf2=exp(-(t-u)^2/(2*sigma^2));
pdf3=pdf2/(sigma*sqrt(2*pi));
cdf2=int(pdf3,t,0,inf);
pdf1=pdf3/cdf2;

function cdf1=normcdfa(x,u,sigma)
syms t
x=sym(x);
pdf1=exp(-(t-u)^2/(2*sigma^2));
pdf2=pdf1/(sigma*sqrt(2*pi));
cdf2=int(pdf2,t,0,inf);
pdf3=pdf2/cdf2;
cdf1=int(pdf3,t,0,x);



B={[20],[0 500],[100 100],[50 50],[2 2];[40 40],[10 10],[0 0],[0],[12 12]}