Basic math

[mighty sequoia]

Is [-1, 3) the same as [-1, 3[?
If not what is the difference?

[mighty sequoia]

I mean the signs

Is it preference or does they have different meaning

[leaden crest]

it depends if you're french or not

they mean the same thing yes

@mighty sequoia

[torn trench]

Hello @atso, no they're not the same,[-1,3) represents a closed interval where real numbers greater than or equal to -1 and less than 3 are included... whereas [-1,3[ is a half-open interval that includes -1 but excludes 3

[round pagoda]

You just described the same thing with different words

[torn trench]

Not really ...the difference between them is whether the endpoint include or exclude 3

[round pagoda]

less than 3

excludes 3

Both of these exclude 3

[mighty sequoia]

Ok so basically both mean that if I have a box and I have to put those numbers inside it, I would put the all numbers from -1 to 2, right?

[round pagoda]

No, we're not just including integers

2.5 would also be there

2.9 also

2.999999 as well

But not 3

[mighty sequoia]

Ye

Ok I got it thanks

So the signs are preference then?

[round pagoda]

What do you mean by "preference"?

[mighty sequoia]

I mean by that writing ) or [ would mean the same thing

[round pagoda]

On the right yes

Oh I just realised ) doesn't make sense on the left anyway

[mighty sequoia]

Ok thanks everyone

[round pagoda]

[-1;2[ is just French notation

You can now .solved

[mighty sequoia]

ye it would be in that case ( or ]

[mighty sequoia]

Didn't know that

.solved