Re: Unable to get function changes outside the function.

[Manpreet Dhiman]

Hello everyone, I am creating a function for my project named "CivilOctave ".
In this I have to write complete code using different different functions.
Firstly , I created function for calculation of Stiffness_matrix, Because
some function calculations depends upon it. But I am unable to get
stiffness_matrix outside the function. Which means that when I display
stiffness_matrix inside the function, It works. But Whenever I display it
outside the function (anywhere in main.m file) it display zeros.

 global Stiffness_matrix;
function Stiffness_matrix=stif(Stiffness_storey)
Number_of_storeys=4;
for  storey_i = 1:Number_of_storeys
  Stiffness_matrix(storey_i, storey_i) = ...
    Stiffness_storey(storey_i);
  if (storey_i < Number_of_storeys )
    Stiffness_matrix(storey_i, storey_i) = ...
      Stiffness_matrix(storey_i, storey_i) + ...
      Stiffness_storey(storey_i + 1);
    Stiffness_matrix(storey_i, storey_i + 1) = ...
      - Stiffness_storey(storey_i + 1);
    Stiffness_matrix(storey_i + 1, storey_i) = ...
      Stiffness_matrix(storey_i, storey_i + 1);
   endif
 end
disp(Stiffness_matrix);  //works , show correct result.
end
disp(Stiffness_matrix);  //not work, display zeros.

stif(Stiffness_storey); //calling




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