MATLAB: How to call the function which contains input functions

functionpyramid

I have a function pyramid and I want to call it on another script.
Following is my code for the function pyramid:
function [S] = pyramid(V,H)
V= input('Enter the value of volume of square pyramid:');   
H=input('Enter the value of height of square pyramid:');    
S= sqrt(3*V/H);     
fprintf('The lenght of the side of square pyramid is: %d\n',S)
When I called the function, pyramid(7,3) then I have to enter the value of V and H again but I do not want to enter it again because I put the value 7 and 3 of V and H.
How to solve this problem?
Thank you very much

Best Answer

Best approach:
Do not put input statements in functions that are going to be called repeatedly.
But if you must, then:
function [S] = pyramid(V,H)
if ~exist('V', 'var') || isempty(V)
  V = input('Enter the value of volume of square pyramid:');   
end
if ~exist('H', 'var') || isempty(H)
  H = input('Enter the value of height of square pyramid:');
end
S = sqrt(3*V/H);     
fprintf('The length of the side of square pyramid is: %f\n',S);
end
Then if you call pyramid without passing any parameters then it will prompt you for the parameters, and if you pass in parameters then it will use them.
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