How to make a variable an even number?

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Ali Mukhtar
Ali Mukhtar 2019-9-11
评论： madhan ravi 2019-9-12
if i have variable an even number is there any direct command can be used please mention with an example

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madhan ravi
madhan ravi 2019-9-11
编辑：madhan ravi 2019-9-11
Is your question "How to check if a variable consists of even numbers?"
Google "even number mod matlab"
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madhan ravi
madhan ravi 2019-9-12
I don't have enough experience with Simulink.

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John D'Errico
John D'Errico 2019-9-12
编辑：John D'Errico 2019-9-12
If you just want to check if a variable X is an even number, then just check the value of mod(x,2). If the result is zero, then X was even.
X = randi(10,1,5)
X =
4 10 8 9 7
mod(X,2)
ans =
0 0 0 1 1
So the first three elements of X were even numbers, because the modulus base 2 were zero for those elements. Here, zero tell you even. 1 tells you odd. If you want a result that is true for even numbers, then do something like this:
mod(X,2) == 0
ans =
1×5 logical array
1 1 1 0 0
As you can see, the result is now true for the even numbers.
If you want to see if all, or any of them were even, then do one of these as appropriate:
all(mod(X,2) == 0)
ans =
logical
0
any(mod(X,2) == 0)
ans =
logical
1
So they were not all even, but SOME of them were even.

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