Function to check if a number is divisible by 5

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hna
hna 2019-10-13
编辑： Walter Roberson 2023-3-30
How can I write a function m.file that takes as input a real number and checks to see if it is divisible by 5. An appropriate message indicating the result should be the output.
I have tried to write this but it dosen't seem to work as I need the user to input a number and check if it is divisble by 5
function [resp] = div5(x)
if (rem(x,5) == 0)
resp = 1;
else
resp = 0;
end
Thanks in advance
  4 个评论
显示 2更早的评论
Walter Roberson
Walter Roberson 2019-10-13
No you would use the code from before and then at the command line
div5(10)
Fahrizal Nurcahya
Fahrizal Nurcahya 2020-10-15
编辑：DGM 2023-3-30
bro it must be like this, check it my function
function [a] = div5(x)
% [x] = div5(x) - to checks a real number if it is divisible by 5.
for a=rem(x,5)
if a~=0
[a] ='NOT divisible by 5.';
else
[a] ='divisible by 5.';
end
end
end

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回答（1 个）

AKASH KUMAR
AKASH KUMAR 2023-3-29
编辑：DGM 2023-3-30
% check "a" is divisible by "b" or not
function test = divisibility_test(a,b)
if ceil(a/b)-a/b==0
test = true;
else
test=false;
end
end
  1 个评论
DGM
DGM 2023-3-30
The output of
ceil(a/b)-a/b==0
is a logical array, and the first conditional is only executed if every element of that array is true. So the whole thing simplifies to
function test = divisibility_test(a,b)
test = all(ceil(a/b)-a/b==0);
end
or just
function test = divisibility_test(a,b)
test = all(~mod(a,b));
end

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