nested function calculation problem

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Cem Eren Aslan
Cem Eren Aslan am 29 Nov. 2021
Kommentiert: Walter Roberson am 30 Nov. 2021
Hello everyone,
I'm trying to write a code that consists of an if and a nested function. I try, each nested function works seperately but It doesn't work when you put it together. The general structure is as follows. It enters the nested function and calculates correctly, but does not print the answer. Where is the problem?
Thanks
function abc(a1,b1,c1)
x;
y;
z;
function x
if statement
statement
else statement
statement
end
end
function y
if statement
else statement
end
end
function z
if statement
else statement
end
end
result=x+y+z
end

Akzeptierte Antwort

Walter Roberson
Walter Roberson am 29 Nov. 2021
Your functions do not return values. You cannot add them.
  4 Kommentare
Walter Roberson
Walter Roberson am 30 Nov. 2021
But that does not require nested functions (unless the nested functions access shared variables.) There is another opportunity with nested functions:
function result = abc(a1,b1,c1)
x_val = []; y_val = []; z_val = []; %must initialize, shared variables!
x;
y;
z;
function x
if statement
statement
else statement
statement
end
x_val = something; %no return value, modify shared variable
end
function y
if statement
else statement
end
y_val = something; %no return value, modify shared variable
end
function z
if statement
else statement
end
z_val = something; %no return value, modify shared variable
end
result = x_val + y_val + z_val; %but you need to return this
end
Walter Roberson
Walter Roberson am 30 Nov. 2021
Shared variables are slower than passing parameters in and returning outputs.

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