can someone please explain what "lim" means? and that weird E thing next to the latex? cuz i always see these and i dont know what they are.

Gludder Jun 27, 2019

#1**+2 **

"lim" is short for limit. It means take the limit, so, for example \(\lim_{x\rightarrow 0}(x^2-3)\) means take the limit of the expression x^{2} - 3 as x goes to zero.

The "weird E thing" is the summation sign (it's the Greek upper case letter sigma), so for example \(\sum_{k=1}^3x_k\) is the same thing as x_{1} + x_{2} + x_{3}.

Alan Jun 27, 2019