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    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb.php

    Line Number: 25

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 25
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

  • 비오는 날 밖에 나온 달팽이의 수를 구하라
    비오는 날 밖에 나온 달팽이의 수를 구하라
  • 사칙연산 기호 모양의 근원이 뭘까?
    사칙연산 기호 모양의 근원이 뭘까?

수학공부 꿀팁

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    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb.php

    Line Number: 77

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 77
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

  • [오쌤의 수학공부법] 자기 주도적 방학 계획 세우기
    [오쌤의 수학공부법] 자기 주도적 방학 계획 세우기
  • 내 진로에 수학이 필요한 이유
    내 진로에 수학이 필요한 이유
21
  • 누구나 다 아는 거듭제곱 이야기

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    #
    찜하기
  • 만장일치의 역설

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    찜하기
  • 파이에 대해 알아봐요!

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    찜하기
  • 초입방체란?

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 4차원의 뫼비우스 띠, 클라인 병

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    찜하기
  • 4차원을 알아보자.

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 쾨니히스베르크와 한붓그리기 이야기

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 동방신기의 노래 "평행선"을 살펴보자

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 1+1이 2인 이유는 무엇일까?

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 평행선이 없다고? 비유클리드 기하학

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 원 모양 전파 망원경에 삼각형이?!

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 행운의 확률은 63%

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

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

    우수
    찜하기
  • 폴리매스 문제는 과학기술진흥기금 및 복권기금의 재원으로 운영되고, 과학기술정보통신부와 한국과학창의재단의 지원을 받아 수행된 성과물로 우리나라의 과학기술 발전과 사회적 가치 증진에 기여하고 있습니다.

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