Skip navigation
³»¿ë¾ø½¿
¹Ù·Î°¡±âÆíÁý
ÀÚÀ¯°Ô½ÃÆÇ
ÇÑÁÙ
QnA
Job
Life
¾÷üȫº¸
DIY
¾ð¹Ú½Ì
NAS
µö·¯´×
°¡»óÈ
Çϵå¿þ¾î
³×Æ®¿÷
RAID
°ÁÂ
ÀÚ·á
BMT
ÈÆÈÆ
ÆǸÅ
±¸¸Å
°ßÀû
ÇØ¿Ü
Ãâ¼®
¹Ù·Î
¹Ù·Î°¡±âÆíÁý
member_id
password
Auto
Login
ȸ¿ø°¡ÀÔ
¾ÆÀ̵ðã±â
¸ñ·Ï
¾²±â
¸ñ·Ï
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
ÇÑŵ¿
2009-10
2009-10-31 11:06:53
Á¶È¸ 9084 Ãßõ 0
Çб³¿¡¼ ¸ÖƼ¹Ìµð¾î °ú¸ñÀ» µè´Âµ¥¿ä.
°íµù´ë µè´ø ¼öÇÐ? ¹°¸®? ´Ù ±î¸Ô¾î¼...
y=10cos(2ÆÄÀÌt+10ÆÄÀÌ)¿¡¼
ÁøÆø, Áøµ¿¼ö, À§»ó, radian requency¸¦ ±¸ÇÐ ±×¸®´Â ¹æ¹ý Á» ¾Ë·Á ÁÖ¼¼¿ä.
¾Æ´Â °Å¸¸ÀÌ¶óµµ ¾Ë·ÁÁÖ¼¼¿ä.
ªÀº±Û Àϼö·Ï ½ÅÁßÇÏ°Ô.
Á¤Èñ¼·
2009-10
cos x ±×·¡ÇÁ°¡
ÁÖ±â 2 pi, ÃÖ´ë 1 ÃÖ¼Ò -1 ÀÌ´Ï
10 cos 2x ´Â
ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 À̱¸¿ä.
10 cos ( 2x + 10 pi ) ´Â
ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 Àº ¶È°°Àºµ¥ x = 0 ºÎÅÍ ½ÃÀÛÀ̶ó¸é 10 cos ( 2x ) ÀÇ ±×·¡ÇÁ¸¦ -10 pi ºÎÅÍ ±×¸®½Ã¸é µË´Ï´Ù.
Áøµ¿¼ö (frequency) ´Â 1 / T À̴ϱî 1 / pi [Hz] °¡ µÇ°Ú³×¿ä. À§»óÇÏ°í ¶óµð¾È ¾î¼±¸´Â Àß ¸ð¸£°Ú±º¿ä ^^;
cos x ±×·¡ÇÁ°¡ ÁÖ±â 2 pi, ÃÖ´ë 1 ÃÖ¼Ò -1 ÀÌ´Ï 10 cos 2x ´Â ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 À̱¸¿ä. 10 cos ( 2x + 10 pi ) ´Â ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 Àº ¶È°°Àºµ¥ x = 0 ºÎÅÍ ½ÃÀÛÀ̶ó¸é 10 cos ( 2x ) ÀÇ ±×·¡ÇÁ¸¦ -10 pi ºÎÅÍ ±×¸®½Ã¸é µË´Ï´Ù. Áøµ¿¼ö (frequency) ´Â 1 / T À̴ϱî 1 / pi [Hz] °¡ µÇ°Ú³×¿ä. À§»óÇÏ°í ¶óµð¾È ¾î¼±¸´Â Àß ¸ð¸£°Ú±º¿ä ^^;
ALpha
2009-10
2*pi*t + 10*pi °¡ À§»ó ¾Æ´Ñ°¡¿ë ?
±×¸®°í radian requency ´Â ¾Æ¸¶ radian frequency °°Àºµ¥ °¢Áøµ¿¼ö¶ó°í
ÁֱⰡ 2pi´Ï±î T·Î ³ª´©¸é 2pi / (1/pi) ´Ï±î 2pi^2 .. °¡ °¢Áøµ¿¼öÀΰ¡¿ä ?
¸Â´ÂÁö Ʋ¸®´ÂÁö ¸ô¶ó¿ä .. ÈëÈë
2*pi*t + 10*pi °¡ À§»ó ¾Æ´Ñ°¡¿ë ? ±×¸®°í radian requency ´Â ¾Æ¸¶ radian frequency °°Àºµ¥ °¢Áøµ¿¼ö¶ó°í ÁֱⰡ 2pi´Ï±î T·Î ³ª´©¸é 2pi / (1/pi) ´Ï±î 2pi^2 .. °¡ °¢Áøµ¿¼öÀΰ¡¿ä ? ¸Â´ÂÁö Ʋ¸®´ÂÁö ¸ô¶ó¿ä .. ÈëÈë
¼ÅÂÀ±
2009-10
ÁøÆø(amplitude): 10
Áøµ¿¼ö(frequency): (2*pi)/(2*pi)=1
radian frequency: 2*pi*Áøµ¿¼ö=2*pi
À§»ó(phase): °©ÀÚ±â Á¤È®ÇÏ°Ô »ý°¢ÀÌ ¾È³ª³×¿ä ¹®Á¦¿¡¼´Â 10*pi °¡ ´äÀÌ µÉ°Í °°½À´Ï´Ù.
±×¸²Àº 10¿¡¼ ½ÃÀÛÇؼ -10À¸·Î ³»·Á°¡´Â cos±×·¡ÇÁ¸¦ ±×´ë·Î ±×¸®½Ã¸é µË´Ï´Ù.
10*pi¸é ÁÖ±âÀÇ ¹è¼ö¸¸Å À̵¿À̱⠶§¹®¿¡ ÆÄÇü¿¡´Â º¯È°¡ ¾ø½À´Ï´Ù.
½Ã°£ 0.25À϶§ 0, 0.5À϶§ -10À» ±×¸®½Ã°í 1À϶§ ´Ù½Ã ÁøÆø10À» ±×¸®½Ã¸é µË´Ï´Ù.
ÁøÆø(amplitude): 10 Áøµ¿¼ö(frequency): (2*pi)/(2*pi)=1 radian frequency: 2*pi*Áøµ¿¼ö=2*pi À§»ó(phase): °©ÀÚ±â Á¤È®ÇÏ°Ô »ý°¢ÀÌ ¾È³ª³×¿ä ¹®Á¦¿¡¼´Â 10*pi °¡ ´äÀÌ µÉ°Í °°½À´Ï´Ù. ±×¸²Àº 10¿¡¼ ½ÃÀÛÇؼ -10À¸·Î ³»·Á°¡´Â cos±×·¡ÇÁ¸¦ ±×´ë·Î ±×¸®½Ã¸é µË´Ï´Ù. 10*pi¸é ÁÖ±âÀÇ ¹è¼ö¸¸Å À̵¿À̱⠶§¹®¿¡ ÆÄÇü¿¡´Â º¯È°¡ ¾ø½À´Ï´Ù. ½Ã°£ 0.25À϶§ 0, 0.5À϶§ -10À» ±×¸®½Ã°í 1À϶§ ´Ù½Ã ÁøÆø10À» ±×¸®½Ã¸é µË´Ï´Ù.
¸ù¸ù
2009-11
wolfram alpah ¿¡ °¡¼ ¼ö½Ä³Ö¾îº¸¼¼¿ä.
±×·¡ÇÁ±îÁö ´Ù ³ª¿É´Ï´Ù
http://www.wolframalpha.com/input/?i=y%3D10cos%282
*pi*t%2B10*pi%29
¹é¹®ÀÌ ºÒ¿©ÀÏ°ß
wolfram alpah ¿¡ °¡¼ ¼ö½Ä³Ö¾îº¸¼¼¿ä. ±×·¡ÇÁ±îÁö ´Ù ³ª¿É´Ï´Ù http://www.wolframalpha.com/input/?i=y%3D10cos%282*pi*t%2B10*pi%29 ¹é¹®ÀÌ ºÒ¿©ÀÏ°ß
ÀåÅÂÁÖ
2009-11
http://www.walterzorn.com/grapher/grapher_e.htm
±èÇöÈ£´ÔÀÌ ÃßõÇÑ »çÀÌÆ®¿Í ºñ½ÁÇÑ »çÀÌÆ®ÀÔ´Ï´Ù.
http://www.walterzorn.com/grapher/grapher_e.htm ±èÇöÈ£´ÔÀÌ ÃßõÇÑ »çÀÌÆ®¿Í ºñ½ÁÇÑ »çÀÌÆ®ÀÔ´Ï´Ù.
·Î±×ÀÎ ÇÏ½Ã¸é ´ñ±ÛÀ» ³²±æ ¼ö ÀÖ½À´Ï´Ù
¸ñ·Ï
¾²±â
¸ñ·Ï
QnA
¾²±â
4050/5660
¹øÈ£
Á¦¸ñ
Page 4050/5660
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1419955
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1419955
1
¹é¸Þ°¡
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(724)
Á¤ÀºÁØ1
2014-05
4880782
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(724)
2014-05 4880782
1
Á¤ÀºÁØ1
32210
ÄÄÇ»Åͱ׷¡ÇÈ¿î¿ë±â´É»ç ÃëµæÇϽŠȸ¿ø´Ô Áú¹®ÀÔ´Ï´Ù!
(3)
°í¿µ´ö
2009-11
6511
0
ÄÄÇ»Åͱ׷¡ÇÈ¿î¿ë±â´É»ç ÃëµæÇϽŠȸ¿ø´Ô ¡¦
(3)
2009-11 6511
1
°í¿µ´ö
32209
»ç°Å¸® ±³Åë»ç°í¿¡¼ Á¢ÃË»ç°í½Ã °ú½ÇºñÀ²ÀÌ ¾îÄɵɱî¿ä?
(9)
¹Ú
2009-11
9052
0
»ç°Å¸® ±³Åë»ç°í¿¡¼ Á¢ÃË»ç°í½Ã °ú½ÇºñÀ²¡¦
(9)
2009-11 9052
1
¹Ú
32208
À©µµ¿ì7 ¾÷±×·¹À̵åÆÇ¿¡ ´ëÇÑ Áú¹®ÀÔ´Ï´Ù.
(4)
ÀåÅÂÁÖ
2009-11
8089
0
À©µµ¿ì7 ¾÷±×·¹À̵åÆÇ¿¡ ´ëÇÑ Áú¹®ÀÔ´Ï´Ù.
(4)
2009-11 8089
1
ÀåÅÂÁÖ
32207
SAS/SATA °ü·ÃÇؼ ¹®Àǵ帳´Ï´Ù.
(6)
¹Ú¿ì¿
2009-11
8089
0
SAS/SATA °ü·ÃÇؼ ¹®Àǵ帳´Ï´Ù.
(6)
2009-11 8089
1
¹Ú¿ì¿
32206
Çϵåµð½ºÅ©.. ¸ØÃè´Ù°¡ Àç½ÃÀÛÇϴ°Å.. Á×±â Á÷ÀüÀΰÅÁÒ?
(7)
¹Ú»ó¹ü
2009-10
9241
0
Çϵåµð½ºÅ©.. ¸ØÃè´Ù°¡ Àç½ÃÀÛÇϴ°Å.. Áס¦
(7)
2009-10 9241
1
¹Ú»ó¹ü
32205
1920X1080ÀúÀå tvÄ«µå Ãßõ.
(3)
ÀÌÁø¼ö
2009-10
7701
0
1920X1080ÀúÀå tvÄ«µå Ãßõ.
(3)
2009-10 7701
1
ÀÌÁø¼ö
32204
À©µµ¿ì7 64ºñÆ® ±ò¾Ò´Âµ¥¿ä ½ÃÀÛÇÏ°í ¿ÖÄÉ Çϵ常 ÀоÁÒ..
(2)
¹Ú»ó¹ü
2009-10
8024
0
À©µµ¿ì7 64ºñÆ® ±ò¾Ò´Âµ¥¿ä ½ÃÀÛÇÏ°í ¿ÖÄÉ¡¦
(2)
2009-10 8024
1
¹Ú»ó¹ü
32203
¸ð´ÏÅÍ Àü¿ø ÅÍÄ¡¹®Á¦? ¸ð´ÏÅͼö¸®³ª À߾ƽôºР´äº¯Á»ÁÖ¼¼¿ä.^^
(1)
¹é½Âö
2009-10
10407
0
¸ð´ÏÅÍ Àü¿ø ÅÍÄ¡¹®Á¦? ¸ð´ÏÅͼö¸®³ª À߾ơ¦
(1)
2009-10 10407
1
¹é½Âö
32202
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
ÇÑŵ¿
2009-10
9085
0
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
2009-10 9085
1
ÇÑŵ¿
32201
¾Ç±â ¾ÚÇÁ¿¡ °üÇÑ Áú¹®ÀÔ´Ï´Ù.
(2)
±èÈ¿¼ö
2009-10
6313
0
¾Ç±â ¾ÚÇÁ¿¡ °üÇÑ Áú¹®ÀÔ´Ï´Ù.
(2)
2009-10 6313
1
±èÈ¿¼ö
32200
[Áú¹®] À¢µð ÇÏµå ½Ã¸®¾óÀÌ À¯Åë»ç ȨÆäÀÌÁö¿¡¼ Á¶È¸°¡ ¾ÈµÇ³×¿ä.
(3)
ÀϹÝÀ¯Àú
2009-10
9975
0
[Áú¹®] À¢µð ÇÏµå ½Ã¸®¾óÀÌ À¯Åë»ç ȨÆäÀÌ¡¦
(3)
2009-10 9975
1
ÀϹÝÀ¯Àú
32199
À©µµ¿ì ºÎÆýà Áú¹®ÀÔ´Ï´Ù
(1)
psj1050
2009-10
5980
0
À©µµ¿ì ºÎÆýà Áú¹®ÀÔ´Ï´Ù
(1)
2009-10 5980
1
psj1050
32198
³ëÆ®ºÏ ¸ÞÀκ¸µå ¹«»óAS ±â°£ÀÌ ¾ó¸¸°¡¿ä?
(8)
µþ±â´ëÀå
2009-10
16037
0
³ëÆ®ºÏ ¸ÞÀκ¸µå ¹«»óAS ±â°£ÀÌ ¾ó¸¸°¡¿ä?
(8)
2009-10 16037
1
µþ±â´ëÀå
32197
win7 29320µå¶óÀ̹ö
(2)
¿ÀŽÂ
2009-10
6044
0
win7 29320µå¶óÀ̹ö
(2)
2009-10 6044
1
¿ÀŽÂ
32196
°Á¦·Î Àü¿øÀ» ³»¸° ÈÄ È¸éÀÌ ¾Èµé¾î ¿Â´Ù°í ÇÕ´Ï´Ù.
(2)
ÀåÅÂÁÖ
2009-10
6128
0
°Á¦·Î Àü¿øÀ» ³»¸° ÈÄ È¸éÀÌ ¾Èµé¾î ¿Â¡¦
(2)
2009-10 6128
1
ÀåÅÂÁÖ
32195
·£Ä«µå´Â ¾îµð·Î °¬´Â°¡? (2)
(3)
À̱â¹é
2009-10
8859
0
·£Ä«µå´Â ¾îµð·Î °¬´Â°¡? (2)
(3)
2009-10 8859
1
À̱â¹é
32194
Àü¿øÄڵ常 ¿¬°áÇصµ ÀÚµ¿ºÎÆÃÀÌ µË´Ï´Ù...
(3)
ÀÎÄ¡ÁØ
2009-10
11642
0
Àü¿øÄڵ常 ¿¬°áÇصµ ÀÚµ¿ºÎÆÃÀÌ µË´Ï´Ù...
(3)
2009-10 11642
1
ÀÎÄ¡ÁØ
32193
¹®ÀÌ »ß°Æ°Å¸³´Ï´Ù.
(10)
±èÈ¿¼ö
2009-10
10019
0
¹®ÀÌ »ß°Æ°Å¸³´Ï´Ù.
(10)
2009-10 10019
1
±èÈ¿¼ö
32192
À¥¼¹öÀÇ °¡»óÈ£½ºÆ® ¼³Á¤Áú¹®ÀÔ´Ï´Ù.
(2)
±è»óÀÏ
2009-10
5987
0
À¥¼¹öÀÇ °¡»óÈ£½ºÆ® ¼³Á¤Áú¹®ÀÔ´Ï´Ù.
(2)
2009-10 5987
1
±è»óÀÏ
32191
À©µµ¿ì xpȨ dsp Á¤Ç°»ç·Á°í Çϴµ¥ ¹ÏÀ»¸¸Çѵ¥°¡ ¾ø³×¿ä.
(2)
Ǫ¸ªÀÌ
2009-10
8031
0
À©µµ¿ì xpȨ dsp Á¤Ç°»ç·Á°í Çϴµ¥ ¹ÏÀ»¡¦
(2)
2009-10 8031
1
Ǫ¸ªÀÌ
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
(current)
4046
4047
4048
4049
4050
(current)
¸ñ·Ï
¾²±â
sfl
Á¦¸ñ
³»¿ë
Á¦¸ñ+³»¿ë
ȸ¿ø¾ÆÀ̵ð
ȸ¿ø¾ÆÀ̵ð(ÄÚ)
À̸§
À̸§(ÄÚ)
stx
sop
and
or
°Ë»ö
ÁÖ±â 2 pi, ÃÖ´ë 1 ÃÖ¼Ò -1 ÀÌ´Ï
10 cos 2x ´Â
ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 À̱¸¿ä.
10 cos ( 2x + 10 pi ) ´Â
ÁÖ±â pi , ÃÖ´ë 10 ÃÖ¼Ò -10 Àº ¶È°°Àºµ¥ x = 0 ºÎÅÍ ½ÃÀÛÀ̶ó¸é 10 cos ( 2x ) ÀÇ ±×·¡ÇÁ¸¦ -10 pi ºÎÅÍ ±×¸®½Ã¸é µË´Ï´Ù.
Áøµ¿¼ö (frequency) ´Â 1 / T À̴ϱî 1 / pi [Hz] °¡ µÇ°Ú³×¿ä. À§»óÇÏ°í ¶óµð¾È ¾î¼±¸´Â Àß ¸ð¸£°Ú±º¿ä ^^;
±×¸®°í radian requency ´Â ¾Æ¸¶ radian frequency °°Àºµ¥ °¢Áøµ¿¼ö¶ó°í
ÁֱⰡ 2pi´Ï±î T·Î ³ª´©¸é 2pi / (1/pi) ´Ï±î 2pi^2 .. °¡ °¢Áøµ¿¼öÀΰ¡¿ä ?
¸Â´ÂÁö Ʋ¸®´ÂÁö ¸ô¶ó¿ä .. ÈëÈë
Áøµ¿¼ö(frequency): (2*pi)/(2*pi)=1
radian frequency: 2*pi*Áøµ¿¼ö=2*pi
À§»ó(phase): °©ÀÚ±â Á¤È®ÇÏ°Ô »ý°¢ÀÌ ¾È³ª³×¿ä ¹®Á¦¿¡¼´Â 10*pi °¡ ´äÀÌ µÉ°Í °°½À´Ï´Ù.
±×¸²Àº 10¿¡¼ ½ÃÀÛÇؼ -10À¸·Î ³»·Á°¡´Â cos±×·¡ÇÁ¸¦ ±×´ë·Î ±×¸®½Ã¸é µË´Ï´Ù.
10*pi¸é ÁÖ±âÀÇ ¹è¼ö¸¸Å À̵¿À̱⠶§¹®¿¡ ÆÄÇü¿¡´Â º¯È°¡ ¾ø½À´Ï´Ù.
½Ã°£ 0.25À϶§ 0, 0.5À϶§ -10À» ±×¸®½Ã°í 1À϶§ ´Ù½Ã ÁøÆø10À» ±×¸®½Ã¸é µË´Ï´Ù.
±×·¡ÇÁ±îÁö ´Ù ³ª¿É´Ï´Ù
http://www.wolframalpha.com/input/?i=y%3D10cos%282*pi*t%2B10*pi%29
¹é¹®ÀÌ ºÒ¿©ÀÏ°ß
±èÇöÈ£´ÔÀÌ ÃßõÇÑ »çÀÌÆ®¿Í ºñ½ÁÇÑ »çÀÌÆ®ÀÔ´Ï´Ù.