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±×¸®°í µÎ¹øÂ°´Â ºñº£´Â ƯÀÌÇÑ ¹Ý¿Ã¸²¹ýÀÔ´Ï´Ù.(Banker''''s Rounding)



°á·ÐÀº ºñº£¿¡¼­ ¹Ý¿Ã¸²¿¡ ´ëÇÑ ¿©·¯°¡Áö ¹ö±×(ÇØ°á¾ÈµÇ´Â)°¡ ÀÖ½À´Ï´Ù.



Áú¹®¿¡ ´ëÇØ ÇϳªÇϳª ´äÀ» ¿Ã¸®°Ú½À´Ï´Ù.



==========================================================================



Option Explicit
Sub main()
    Dim °ª(3) As Long
    Dim ÇÕ°è As Long
    °ª(1) = 20.5
    °ª(2) = 30.1
    °ª(3) = 40.1
    ÇÕ°è = °ª(1) + °ª(2) + °ª(3)
    MsgBox ÇÕ°è
End Sub                                               ÀÌ ÇÁ·Î±×·¥¿¡¼­´Â ÇÕ°è °á°ú°ªÀÌ 90ÀÌ ³ª¿É´Ï´Ù



=> ŸÀÔ Ä³½ºÆ®(ÀÚ·áÇü °­Á¦ º¯Çü)¿¡ ÀÇÇØ ¹Ý¿Ã¸²µÇ¾ú½À´Ï´Ù. ¿Ö 90ÀÌ ³ª¿À³Ä¸é...



Microsoft Á¦Ç°¿¡´Â »ç¿ëÇÒ ¼ö ÀÖ´Â ¶ó¿îµù ¾Ë°í¸®ÁòÀÌ ¸¹½À´Ï´Ù. ¶ó¿îµù ¾Ë°í¸®ÁòÀº ExcelÀÇ ¿öÅ©½ÃÆ® Round() ÇÔ¼ö¿¡ ÀÖ´Â »ê¼ú ¶ó¿îµù(Arithmetic Rounding)ºÎÅÍ Visual Basic for ApplicationsÀÇ CInt(), CLng() ¹× Round() ÇÔ¼ö¿¡ ÀÖ´Â Banker''''s Rounding¿¡ À̸£±â±îÁö ´Ù¾çÇÕ´Ï´Ù.



Banker''''s Rounding



¶ó¿îµùÇÑ °ªµéÀ» ´õÇÒ ¶§ .5¸¦ Ç×»ó °°Àº ¹æÇâÀ¸·Î ¶ó¿îµùÇϸé ÇÕ°èÀÇ ÆíÁß ¿ÀÂ÷°¡ Ä¿Áú ¼ö ÀÖ½À´Ï´Ù. ÆíÁß ¿ÀÂ÷¸¦ ÃÖ¼ÒÈ­ÇÏ´Â ÇÑ °¡Áö ¹æ¹ýÀº Banker''''s RoundingÀ» »ç¿ëÇÏ´Â °ÍÀÔ´Ï´Ù.

Banker''''s Rounding¿¡¼­´Â »óȲ¿¡ µû¶ó .5¸¦ ¹Ý¿Ã¸²Çϰųª Àß¶ó³À´Ï´Ù. 1.5¿Í 2.5´Â µÑ ´Ù 2·Î ¶ó¿îµùÇϰí 3.5¿Í 4.5´Â µÑ ´Ù 4·Î ¶ó¿îµùÇÏ´Â ¹æ½ÄÀ¸·Î °¡Àå °¡±î¿î ¦¼ö·Î ¶ó¿îµùÇÏ´Â °ÍÀÌ ±ÔÄ¢ÀÔ´Ï´Ù. Banker''''s RoundingÀº ´ëĪÀûÀÔ´Ï´Ù.



(ÀÏ¹Ý ¿¬»ê) : 1.5 + 2.5 +3.5 +4.5 = 12
(Round ¹Ý¿Ã¸²) : Round(1.5) + Round(2.5) + Round(3.5) + Round(4.5) = 12
(¼öÇÐÀû ¹Ý¿Ã¸²) : 2 + 3 + 4 + 5 = 14



=> °á·ÐÀº 0.5 À϶§ »óȲ¿¡ µû¶ó ¹Ý¿Ã¸² °á°ú°¡ ´Ù¸¨´Ï´Ù. °¡±î¿î ¦¼ö·Î ¶ó¿îµùµÈ´Ù°í »ý°¢ÇÏ½Ã¸é µË´Ï´Ù. ±×·¡¼­...91ÀÌ ¾Æ´Ï¶ó..20+30+40ÀÇ ÇÕÀÎ 90ÀÌ µÇ¾ú½À´Ï´Ù.



Option Explicit
Sub main()
    Dim °ª(3) As Long
    Dim ÇÕ°è As Long
    °ª(1) = 20.6
    °ª(2) = 30.1
    °ª(3) = 40.1
    ÇÕ°è = °ª(1) + °ª(2) + °ª(3)
    MsgBox ÇÕ°è
End Sub                                               ÀÌ ÇÁ·Î±×·¥¿¡¼­´Â ÇÕ°è °á°ú°ªÀÌ 91ÀÌ ³ª¿É´Ï´Ù



µð¹ö±×ÇØº¸´Ï, ù¹øÂ°ÇÁ·Î±×·¥¿¡¼± °ª1ÀÌ 20, µÎ¹øÂ°ÇÁ·Î±×·¥¿¡¼± °ª1ÀÌ 21·Î ÀÐÈ÷´õ±º¿ä ±×·¡¼­ ¼Ò¼öÁ¡ÀÌ .6ºÎÅÍ ¹Ý¿Ã¸²ÀÌ µÈ´Ù°í »ý°¢Çß½À´Ï´Ù~  ±×·±µ¥..



=> ¸Â½À´Ï´Ù. 



Option Explicit
Sub main()
    Dim °ª(3) As Double
    Dim ÇÕ°è As Long
    °ª(1) = 20
    °ª(2) = 30.5
    °ª(3) = 40
    ÇÕ°è = °ª(1) + °ª(2) + °ª(3)
             °ª°ú ÇÕ°èÀÇ º¯¼öŸÀÔÀ» ´Ù¸£°Ô ÁöÁ¤ÇßÀ» ¶§
   
MsgBox ÇÕ°è                                   ÀÌ ÇÁ·Î±×·¥¿¡¼± ÇÕ°è °ªÀÌ 90ÀÌ ³ª¿Ô¾î¿©~
End Sub                                          



=> ¸Â½À´Ï´Ù.

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