How to use a function output in another function?
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Larry
el 25 de En. de 2014
I have written a function in the script, say
function A = matrixy()
A = zeros(3);
end
When calling it in the command window, I'll have
>>matrixy
ans =
0 0 0
0 0 0
0 0 0
But when I key in A in the command window, it shows "Undefined function or variable 'A'". Is there a way to let A pick up this value in the command window?
Also, I want to create another function and use this matrix A produced in the previous function. How should I do it?
Many thx!
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Respuesta aceptada
Amit
el 25 de En. de 2014
Editada: Amit
el 25 de En. de 2014
A = matrixy;
A function has an output and the name. Unless you define the output, it goes to ans variable.
2 comentarios
Fernadez
el 10 de Ag. de 2017
I don't think Amit answer is correct, I am having the same question. if A = matrix, you are running the whole function all over again. if you run the function, how do you save the result "A", and how to you call "A" an input to the second function?
Walter Roberson
el 10 de Ag. de 2017
A = matrixy();
calls matrixy once (per time that you execute the statement), and assigns the output of running matrixy() the variable "A" in your current workspace.
You can then pass A to another routine, such as
sqrt(A)
If you do not need the output for second purposes, you can just directly call
sqrt(matrixy())
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