multiple function outputs
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David Craig
el 20 de Ag. de 2011
Comentada: Adithya Papa
el 2 de Feb. de 2020
hi i am working through an online tutorial and having trouble with the following function,
function [summ,prodd] = sumprod(x1,x2)
% usage:
% [summ, prodd] = sumprod(x1,x2)
% x1 = a complex number
% x2 = another complex number
% summ = sum of x1 and x2
% prodd = product pf x1 and x2
prodd = (x1)*(x2);
summ = x1 + x2;
I want it to output the two variables but it only gives me the sum. thanks,
David
4 comentarios
Abinash Mandal
el 14 de Jun. de 2019
Suppose we only want second output (product in this case), then how to do that??
Stephen23
el 15 de Jun. de 2019
Editada: Stephen23
el 15 de Jun. de 2019
@Abinash Mandal: by reading this comment below, from three years ago, and the comment that follows it:
Or by using your favorite internet search engine to search for "MATLAB ignore function outputs" and reading the first link that is returned:
Respuesta aceptada
Fangjun Jiang
el 20 de Ag. de 2011
call it this way: [s,p]=sumprod(x1,x2)
2 comentarios
Kannapiran Arasu
el 8 de Sept. de 2016
For this I always gt the first value namely s. If I want only p how to go about it?
Fangjun Jiang
el 8 de Sept. de 2016
You can do this. [~,p]=sumprod(x1,x2). Please note that earlier version of MATLAB does not support this "~" syntax.
Más respuestas (2)
amatlabr
el 22 de Mzo. de 2018
Editada: amatlabr
el 22 de Mzo. de 2018
I know is an answered question, but I wrote two simple functions in different m-file under same folder :
function [ somma,prodotto ] = sommaprodotto( a,b )
somma = a +b;
prodotto = a*b;
end
and a main() calling the above function :
function [s,p]=main( )
val1 = 39;
val2 = 21;
[s,p]= sommaprodotto(val1,val2);
end
I click on run button but I only get the first value, why? I also noticed if I write calling function without semicolon ( [s,p]= sommaprodotto(val1,val2) ) I get both values in the command window, but not in the working space, why? Thanks
1 comentario
Stephen23
el 22 de Mzo. de 2018
Editada: Stephen23
el 22 de Mzo. de 2018
"I click on run command but I only get the first value"
Because you click on the "Run" button. Do NOT use that button. That button is the worst design decision in the history of MATLAB, because no beginner knows what it really does. Ignore that button.
To run any code simply type it in the command window (or another script/function/...) together with any required input and output arguments and then press enter. For example:
>> [S_out,P_out] = main()
and then press enter. You will get both outputs.
"I also noticed if I write calling function without semicolon ... I get both values in the command window, but not in the working space"
Which workspace? Where are you calling this function? How are you checking if the variables are in that workspace? Try writing whos straight after when you call that function: are those variables listed?
Adithya Papa
el 2 de Feb. de 2020
function [summ,prodd] = sumprod(x1,x2)
prodd = (x1)*(x2)
summ = x1 + x2;
1 comentario
Adithya Papa
el 2 de Feb. de 2020
Now it will give 2 outputs.The semicolon after the prodd suppresses the output.That's why it is not showing
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