Nested While and For Loop

Question

0 个投票

Have the following code with an error stating "Array indices must be positive integers or logical values." Could someone point me in the direction of what this error means or why i'm getting it. It occurring in the second while and i'm assuming will happen again in the third

Eqn1 = @(x) 5*(1-erf(3*x));
Eqn2 = 0;
Eqn3 = @(x) 5*(1-erf(3*(x-30)));
X0 = 0;
X1 = 1;
X29 = 29;
X30 = 30;
Int1 = 10;
Int2 = 100;
Value1 = ((X1-X0)/Int1);
Value2 = ((X29-X1)/Int2);
AreaReq5 = 0;
while (X0 < X1)
    AreaReq5 = AreaReq5+(Value1/2)*(Eqn1(X0)+Eqn1(X0+Value1));
    X0 = X0+Value1;
    while (X1 < X29)
    AreaReq5 = AreaReq5+(Value2/2)*(Eqn2(X1)+Eqn2(X1+Value2));
    X1 = X1+h5b;
    end
    while (X29 < X30)
           AreaReq5 = AreaReq5+(Value1/2)*(Eqn3(X29)+Eqn3(X29+Value1));
    XNow = X29+Value1;
    end
end