수학동아 - 폴리매스

자유게시판

수학을 주제로 떠들어 보세요!

[잡담] 열분ㄴ

스윗루나 2020.05.26 03:43 조회 798

페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

몇살이세요?

이전글 저는

다음글 권장독) 건의사항

추천 0 목록보기

댓글 작성하기

GUN.007 Lv.11 2020.05.26 03:47 비밀댓글

비밀 댓글이 등록 되었습니다.

댓글 작성하기 댓글수1
- 스윗루나 Lv.5 2020.05.26 03:48
  
  아아 글쿤요
  
  ~~(전 여기 있는 거의 모든 사람들을 따라잡으려면 몇 년이 걸릴 겁니다. 짧으면 1년?)~~
  
  좋아요0
아인수타인 Lv.12 2020.05.26 04:27

A PHP Error was encountered

Severity: Warning

Message: mkdir(): Permission denied

Filename: libraries/Common.php

Line Number: 202

Backtrace:

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 202
Function: mkdir

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
Line: 90
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
Line: 343
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 558
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: file_put_contents(/DATA/upload/polymath/latex/4a551637d67ec6af4e59511ec3c58875.gif): failed to open stream: No such file or directory

Filename: libraries/Common.php

Line Number: 213

Backtrace:

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 213
Function: file_put_contents

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
Line: 90
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
Line: 343
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 558
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

저는 서울지하철 2호선 본선에 있는 역 개수에서 1을 더하고 서울지하철 6호선에 있는 역 개수를 뺀 후, $\lim_{n \to\infty } \prod_{k=1}^{n}\frac{k}{k+1}$ 에 1을 더한 수번째 홀수 소수를 곱한 만큼입니다.

댓글 작성하기 좋아요0 댓글수23
- 스윗루나 Lv.5 2020.05.26 04:30
  
  수식 깨졌는데 ,,
  
  글구 저 그런거 몰라요(?)
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 04:31
  
  아 잠만 약간의 계산실수가 있었네요. (그리고 수식 깨지면 저거 복붙해서 수식입력기 넣으시면 됩니다^^)
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 04:32
  
  잠만요
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 04:33
  
  중2시죵?
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 04:33
  
  네. (맞힌 거에는 아래 2가지 가능성이 있겠죠)
  
  1. 진짜 계산을 했다
  
  2. 수학동아를 뒤졌다
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 04:35
  
  둘다아닙니다
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 04:39
  
  아ㅋㅋㅋ 저것도 있었구나ㅋㅋ
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 04:41
  
  ㅋㅋㅋㅋㅋㅋㅋㅋ
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 04:44
  
  친하게 지냅시다 12녀입니다
  
  혹시 남자세요 여자세요?
  
  대답안하셔도됩니뎌
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 05:46
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/69ce3b5925194d796a54b69fea22c9c7.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  $\sum_{k=1}^{10}k^k$ 이 홀수이면 남자, 짝수이면 여자입니다.
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 07:04
  
  방금 그거 수학 몇학년꺼죠? 완전 어렵..
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 07:54
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/7ec0c685c3bcfc350bffb6b4b18afa5d.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/fac58a30550e29623263cc010d747e58.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  $\sum$ 기호는 고2, $\prod$ 기호는 대학교 때 나온다네요.
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 08:51
  
  .................
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 09:04
  
  .....전 이차방정식 배우는 중인데요.....
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 09:06
  
  .........그걸 타인님이 다 배우셨다는게 신기하군요........
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 09:06
  
  ㅋㅋㅋㅋㅋㅋㅋㅋㅋ
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 09:07
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/fac58a30550e29623263cc010d747e58.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  참고로 이거 첨에 파이인줄 알았답니다
  
  $\prod$
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 10:39
  
  파이 맞아요. 원주율 파이와 의미는 다르지만.
  
  좋아요0
- 아인수타인 Lv.12 2020.05.26 10:41
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/c136d2b048f080ba47ec83596617b7b8.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: mkdir(): Permission denied
  
  Filename: libraries/Common.php
  
  Line Number: 202
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 202
  Function: mkdir
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  A PHP Error was encountered
  
  Severity: Warning
  
  Message: file_put_contents(/DATA/upload/polymath/latex/a0f34b5480aa29fb18351f3ecf04d688.gif): failed to open stream: No such file or directory
  
  Filename: libraries/Common.php
  
  Line Number: 213
  
  Backtrace:
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 213
  Function: file_put_contents
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
  Line: 236
  Function: getLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
  Line: 200
  Function: parseLatexImg
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
  Line: 343
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
  Line: 558
  Function: view
  
  File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
  Line: 315
  Function: require_once
  
  근데 의미 자체는 어렵지 않아요.
  
  $\sum_{k=1}^{n}a_k=a_1+a_2+...+a_n$ (시그마라 읽음)
  
  $\prod_{k=1}^{n}a_k=a_1a_2...a_n$ (파이라 읽음)
  
  좋아요0
- 스윗루나 Lv.5 2020.05.26 23:14
  
  남자?
  
  좋아요0
- 아인수타인 Lv.12 2020.05.28 09:06
  
  정답!
  
  좋아요0
- 스윗루나 Lv.5 2020.05.28 18:59
  
  수동 확인했다쥬
  
  좋아요0
- 아인수타인 Lv.12 2020.05.29 21:32
  
  ㅋㅋㅋㅋㅋ 계산한 줄ㅋㅋㅋ
  
  좋아요0
222 Lv.9 2020.05.26 05:01 비밀댓글

비밀 댓글이 등록 되었습니다.

댓글 작성하기 댓글수2
- 스윗루나 Lv.5 2020.05.26 05:03
  
  와아 나이가 같군요!
  
  ~~(수동에 반모 있던것같은데 되나욥? 전 3명이거덩요)~~
  
  좋아요0
- Yunite Lv.6 2020.05.26 18:12
  
  저번 열혈독자에 나오셨잖아요!
  
  좋아요0
매스파이 Lv.8 2020.11.21 01:02

A PHP Error was encountered

Severity: Warning

Message: mkdir(): Permission denied

Filename: libraries/Common.php

Line Number: 202

Backtrace:

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 202
Function: mkdir

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
Line: 90
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
Line: 343
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 558
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: file_put_contents(/DATA/upload/polymath/latex/631317fe791f7f13cb588136cbc9c09b.gif): failed to open stream: No such file or directory

Filename: libraries/Common.php

Line Number: 213

Backtrace:

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 213
Function: file_put_contents

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 236
Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view_comment_list.php
Line: 90
Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/view.php
Line: 343
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 558
Function: view

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

저는 $\frac{(\sum_{n=1}^{3}n^2-n)+(\prod_{n=1}^{4}n^2)-2}{4}$ 살 이예요.

댓글 작성하기 좋아요0 댓글수0