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If Statement to identify integer

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Julissa Pou
Julissa Pou on 18 Nov 2020
How do I write an if statement that checks if N is an integer and if it is not then you use ceil function to round it.

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Answers (1)

Bastian Arturo Romero Mardones
Edited: Bastian Arturo Romero Mardones on 18 Nov 2020
N is your number.
if(mod(N,1) == 0)
fprintf("i% is a integer \n", N);
else
N = ceil(N)
end

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Julissa Pou
Julissa Pou on 18 Nov 2020
What does the (N,1) do? Can you leave it as mod(N)?
Bruno Luong
Bruno Luong on 18 Nov 2020
I think isinteger does not do what you expect Timo
>> isinteger(3)
ans =
logical
0
Bastian Arturo Romero Mardones
mod(N,1)
Find the modulus of N divided by 1.
if mod (N, 1) = 0, N is an integer since there is no remainder.
for example:
mod(2,1) % ---> 0
2/1 = 2 (remainder 0)
mod(2.3,1) % ---> 0.3
2.3 / 1 = 2 (remainder 0.3)

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