0
$\begingroup$

If I have an arbitrary list

$$L = [2,3,7]$$

What is the proper notation for the product of all the elements in this list?

My guess is

$$\prod_{x\in L} x = 42$$

or maybe

$$\prod_{i} x_i, x \in [2,3,7] = 42$$

Are either of these correct?

$\endgroup$
  • 2
    $\begingroup$ The first one is better $\endgroup$ – user251257 Oct 2 '16 at 17:51
2
$\begingroup$

Yeah, the first one is more standard in mathematics. $$ \prod_{x\in L} x = 42 $$

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.