Create a program that asks a user to input a number and then finds the sum of digits of the number using recursion. for example 341 = 3+4+1 = 8

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This is what i have but it wont compute anything..
number = input('Enter a number here:');
function result = mySum(numbers)
numbers = num2str(number) - '0';
if length(numbers) == 0
result = 0;
else
result = numbers(end) + mySum(numbers(1:end - 1));
end
end

Respuesta aceptada

vijaya lakshmi
vijaya lakshmi el 20 de Mzo. de 2018
Hi Matt,
You have written function definition but missed to call the function 'mySum', that is why it is unable to compute anything.
You can refer to the following code snippet to achieve this
numbers=input('get a number');
numbers = num2str(numbers);
out=mySum(numbers)
function result = mySum(numbers)
result=0;
for i=1:length(numbers)
result=str2double(numbers(end))+mySum(numbers(1:end-1));
end
end
Hope this helps you!

Más respuestas (1)

Saptarshi Neogi
Saptarshi Neogi el 30 de Ag. de 2020
Editada: Saptarshi Neogi el 30 de Ag. de 2020
% This program does not require any inbuilt functions.
function x = digit_sum(n)
x=0;
if n>0
x=mod(n,10)+digit_sum(floor(n./10));%recursive
end

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