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/sci/ - Science & Math

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11129008 No.11129008 [Reply] [Original]

FUCK LIMSUPS AND LIMINFS HOLY SHIT WHY DOES OUR TEACHER CRAM THIS SHIT DOWN OUR THROAT??!?!?!? DOING PROBLEMS WITH THESE THINGS SUCK HARDER THAN CHAD'S GF HOLY FUCK ME

>> No.11129018

two acronyms I wish i never had to hear again

>> No.11129035

>>11129008
>limsup
>liminf
you might be retarded nigger

>> No.11129036

>>11129018
I DIDN'T UNDERSTAND THEM THE FIRST FUCKING TIME AND NOW SHE WANTS US TO DO THEM WITH FUNCTIONS FUCK ME

>> No.11129051

the only time I ever had to use those for a higher course (intro dynamical systems) I looked up the definition and copied it; got full marks

>> No.11129655

i don't see what's so bad about them, they're just the limits of the "upper hull" and "lower hull" of your sequence. they're very intuitive ideas, and just have a bit of a strange feeling definition. but as it turns out the definition is basically the same as that for limits, just that it's only bounded by epsilon from above or from below instead of both.
>>11129036
liminfs of functions are great. fatou's lemma is a godsend.

>> No.11131207

>>11129655
I mean limsups and liminfs make intuitive sense but I simply can't wrap my head around them when I have to do a problem with them.

>> No.11131232

>>11129035
Are you saying he's retarded for using those words, or because the concepts are easy?
Because that's the correct terminology.