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Declare variable as function output [closed]

asked 2015-12-28 15:32:16 +0200

bruno171092 gravatar image

hello guys, i wrote a new function, lets call it "func", that has some matrix as input and also some matrix as output. the thing is, i want to declare the last output of the function as a new variable x ( x=func(A) for a given A) the problem is: if i say

x = func(A)
print x

i get :


I guess the problem is, that i calculate more than one thing while the function is running, but at the end i just want to able to use that one single output of the function for further use...

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Closed for the following reason the question is answered, right answer was accepted by bruno171092
close date 2015-12-31 00:21:15.857904


Could you please provide the code of your function so that we can understand the problem ?

tmonteil gravatar imagetmonteil ( 2015-12-30 23:41:10 +0200 )edit

It is ok :) I just forgot to use return ;)

bruno171092 gravatar imagebruno171092 ( 2015-12-31 00:19:24 +0200 )edit

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answered 2015-12-29 02:51:15 +0200

vdelecroix gravatar image

updated 2015-12-29 02:51:49 +0200

To actually return a value you need to use the keyword return as in

def f():
    return 3

With the above example you can do

sage: f()
sage: a = f()
sage: a
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Thanks :) That was exactly the problem. I only used print instead of return :)

bruno171092 gravatar imagebruno171092 ( 2015-12-31 00:18:36 +0200 )edit

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Asked: 2015-12-28 15:32:16 +0200

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Last updated: Dec 29 '15