# How can I write this equation into MATLAB script

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Lauren Maher on 16 Sep 2019
Commented: Lauren Maher on 24 Sep 2019 ##### 2 CommentsShow 1 older commentHide 1 older comment
Lauren Maher on 24 Sep 2019
Thank you!

Jyothis Gireesh on 19 Sep 2019
Symbolic Math Toolbox may be used to implement the above equation in MATLAB. Here are a few suggestions which may be helpful in the implementation
• Declare n as a symbolic variable and N as a symbolic function of two variables x and t using the following syntax
syms n N(x,t)
• To implement the summation term, use the following code
F = exp(-((2*n+1)*pi)^2*D*t/L^2)*sin((2*n+1)*pi*x/L)/((2*n+1)*pi^3);
Fsum = symsum(F,n,0,inf);
Here n is replaced by 2n+1 so that only odd terms are considered in the summation.
The function symsum()” sets the limits of summation from 0 to inf.
Remaining terms can be written as normal equation in MATLAB
Please use the following documentation links on how to create symbolic functions and symsum()” to get a better understanding
Lauren Maher on 24 Sep 2019
Thank you!