Use index in anonymous function
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Hi guys
can i include index in anonymous function for example something like this where T is matrix element. And can i call it in for loop for example:
syms T n m
delta_x=(1/50);delta_t=0.001;
x=0:delta_x:1;
t=0:delta_t:0.25;
Lamda=((delta_t)/((delta_x)^2));
n=1:length(t);m=2:length(x);k=1;
Tem=@(T,n,m)((-Lamda*T(n+1,m-1))+(2*(1+Lamda)*T(n+1,m))-(Lamda*T(n+1,m+1)))....
-((Lamda*T(n,m-1)) +(2*(1-Lamda)*T(n,m)) +(Lamda*T(n,m+1)));
for n=1:length(t)-1
for m=2:length(x)
if n==1
T(n,m)=250;
elseif m==1 && n>=2
T(n,m)=350;
else
Temp{1}=Tem(T,n,m); % I want to generate several equations from thie line
end
end
end
Best Regards,
采纳的回答
Walter Roberson
2013-10-3
Yes, it is legal to index a symbol in an anonymous function. It is recommended, however, to initialize the symbol as a matrix.
e.g.,
A = sym('A',dim)
where
dim: Integer or vector of two integers specifying dimensions of A. For example, if dim is a vector [m n], then the syntax A = sym('A',[m n]) creates an m-by-n matrix of symbolic variables. If dim is an integer n, then the syntax A = sym('A',n) creates a square n-by-n matrix of symbolic variables.
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