problem of solving the PDE
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i define the function, boundary and initial condition of the heat equation in a standard form ,when i try to plot the solution with x direction, it gives me an error that x =linspace () is not inside any function. Do i need to create a function file for each function in order to put the x range inside?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1646841/image.png)
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VBBV
am 20 Mär. 2024
Bearbeitet: VBBV
am 20 Mär. 2024
Cut all the lines from 1 till 16 and place it after line 26.
Function declarations must be done at the end of the code in your script file (with properly termination using keyword end ... in your case its done correctly)
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VBBV
am 21 Mär. 2024
Bearbeitet: VBBV
am 21 Mär. 2024
@suen If your code begins with keyword function in line 1 , then by MATLAB convention the file is considered as function file for which it expects inputs and/or outputs. Since the inputs to function are present later part of your code and defined outside the function body, MATLAB throws such error.
Note that each function must end using keyword end except when there is only one function defined inside the script file.
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