Thread: difference between the two

So I was wondering if anyone could maybe give me some insight on the difference between



or, for that matter, the difference between



I've noticed my textbook seems to more frequently use the latex equivalent of \leqslant and \geqslant, but I wasn't sure if there was a reason for this.

Is there some unspoken math-type formality where the bottom bar should be parallel to the bottom of the less/greater than sign in certain instances, and parallel to the page in others? Or is it just a matter of aesthetic preference?

I know this isn't exactly a Latex question (though it may be a silly question), but I didn't know where else it should go.

Thanks in advance

There is not any mathematical difference between them.

that's what i thought, thanks.

I think it depends on various countries' typesetting traditions. I believe, I Russia the standard is .