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¸ 9183 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
4076/5686
¹øÈ£
Á¦¸ñ
Page 4076/5686
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(727)
Á¤ÀºÁØ1
2014-05
4986846
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(727)
2014-05 4986846
1
Á¤ÀºÁØ1
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1522820
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1522820
1
¹é¸Þ°¡
32219
Optoma HD26 ·¥ÇÁ°¡ ¾îÁ¦ Àú³á¿¡ ÆøÀ½À» ¿ï¸®¸é¼ Æø¹ßÀ» Çß½À´Ï´Ù.
(5)
³ª¶ó»ç¶û
2018-04
4006
0
Optoma HD26 ·¥ÇÁ°¡ ¾îÁ¦ Àú³á¿¡ ÆøÀ½À» ¡¦
(5)
2018-04 4006
1
³ª¶ó»ç¶û
32218
10G ¿¡¼ SCP º¹»ç½Ã ¼º´É ¾ó¸¶³ª ³ª¿À³ª¿ä?
(18)
±¸Â÷´Ï
2023-09
1606
0
10G ¿¡¼ SCP º¹»ç½Ã ¼º´É ¾ó¸¶³ª ³ª¿À³ª¡¦
(18)
2023-09 1606
1
±¸Â÷´Ï
32217
NVMe to SATA(or USB) ÄÁ¹öÅÍ°¡ ÀÖÀ»±î¿ä?
(15)
Á¤ÀǼ®
2018-04
23544
0
NVMe to SATA(or USB) ÄÁ¹öÅÍ°¡ ÀÖÀ»±î¿ä?
(15)
2018-04 23544
1
Á¤ÀǼ®
32216
Powershell ½ÇÇà °ü·Ã ¹®ÀÇ
L2½ºÀ§Ä¡
2023-09
1100
0
Powershell ½ÇÇà °ü·Ã ¹®ÀÇ
2023-09 1100
1
L2½ºÀ§Ä¡
32215
2CPU Ƽ¼ÅÃ÷ ÁÖ¹®Çߴµ¥, »çÀÌÁî´Â ¾î´À ½ÃÁ¡¿¡ Àû¾î¾ß Çϳª¿ä?
ÀÌÃæ¿íblue
2010-07
8278
0
2CPU Ƽ¼ÅÃ÷ ÁÖ¹®Çߴµ¥, »çÀÌÁî´Â ¾î´À ¡¦
2010-07 8278
1
ÀÌÃæ¿íblue
32214
[ WiFi ] ¹Ì±¹»ê WEMO(½º¸¶Æ® Ç÷¯±×)´Â ¹«¼± 2.4Ghz ¸î ¹ø ä³ÎÀ» Àâ¾Æ¾ß µÇ´ÂÁö¿ä ?
(2)
Àü¼³¼ÓÀǹ̡¦
2017-02
4062
0
[ WiFi ] ¹Ì±¹»ê WEMO(½º¸¶Æ® Ç÷¯±×)´Â ¡¦
(2)
2017-02 4062
1
Àü¼³¼ÓÀǹ̡¦
32213
Á¦°¡ ±Í°¡ Æȶû°Å·Á¼.. Á¶¾ðÇØ ÁÖ¼¼¿ä..
(8)
¿©ÁÖ³ó¹Î76
2019-06
2375
0
Á¦°¡ ±Í°¡ Æȶû°Å·Á¼.. Á¶¾ðÇØ ÁÖ¼¼¿ä..
(8)
2019-06 2375
1
¿©ÁÖ³ó¹Î76
32212
·¹À̵å ÄÁÆ®·Ñ·¯¿¡¼ Çϵåµð½ºÅ© ÃʱâÈ°¡ ¾È µÇ³×¿ä
(4)
VSPress
2014-12
10008
0
·¹À̵å ÄÁÆ®·Ñ·¯¿¡¼ Çϵåµð½ºÅ© ÃʱâÈ°¡¡¦
(4)
2014-12 10008
1
VSPress
32211
qq ÀÌ°Å ÁøÂ¥ ¾ÈÁö¿öÁö³×¿ä ¸Ó¸®°¡ ÆøÆÄÁ÷ÀüÀÔ´Ï´Ù.
(2)
Ãֽÿµ
2016-03
6269
0
qq ÀÌ°Å ÁøÂ¥ ¾ÈÁö¿öÁö³×¿ä ¸Ó¸®°¡ ÆøÆÄÁ÷¡¦
(2)
2016-03 6269
1
Ãֽÿµ
32210
ÀÎÅÚ NUC RMA °Ç
(4)
cjsrbc
2014-12
10002
0
ÀÎÅÚ NUC RMA °Ç
(4)
2014-12 10002
1
cjsrbc
32209
javplayer¿¡¼ 󸮼ӵµ¿¡ °¡Àå Å« ¿ä¼Ò´Â ¹«¾ùÀϱî¿ä?
(3)
drama
2022-02
4796
0
javplayer¿¡¼ 󸮼ӵµ¿¡ °¡Àå Å« ¿ä¼Ò´Â¡¦
(3)
2022-02 4796
1
drama
32208
À©µµ 2012¿¡¼ 2012 R2·Î ¾÷±×·¹À̵å ÇÏ´Â path´Â ¾øÁÒ?
(15)
ȸ¿øK
2013-07
6879
0
À©µµ 2012¿¡¼ 2012 R2·Î ¾÷±×·¹À̵å Çϴ¡¦
(15)
2013-07 6879
1
ȸ¿øK
32207
À©8°ú 8.1 µà¾óºÎÆÃÀÌ °¡´ÉÇÒ±î¿ä?
(2)
ÇÏ´ÃÇÏ´Ã
2014-12
5275
0
À©8°ú 8.1 µà¾óºÎÆÃÀÌ °¡´ÉÇÒ±î¿ä?
(2)
2014-12 5275
1
ÇÏ´ÃÇÏ´Ã
32206
ÆǸŠ°Ô½ÃÆÇ¿¡ pc¸»°í À½½Ä¹°°°Àº°Íµµ »ó°ü¾ø³ª¿ä?
(20)
MnkRed
2018-04
3628
0
ÆǸŠ°Ô½ÃÆÇ¿¡ pc¸»°í À½½Ä¹°°°Àº°Íµµ »ó¡¦
(20)
2018-04 3628
1
MnkRed
32205
ÈĺÒÇÏÀÌÆнºÄ«µå°ü·Ã¹®ÀÇ
(5)
À±Ä¡¿
2010-08
12651
0
ÈĺÒÇÏÀÌÆнºÄ«µå°ü·Ã¹®ÀÇ
(5)
2010-08 12651
1
À±Ä¡¿
32204
Ä¿³ØÅ͸¦ ±¸ÇÕ´Ï´Ù
(6)
ÄÉÀ̽º
2013-07
11102
0
Ä¿³ØÅ͸¦ ±¸ÇÕ´Ï´Ù
(6)
2013-07 11102
1
ÄÉÀ̽º
32203
window 7 ¿¡¼ 2TbÀÌ»ó ÀνÄÇÏ´ÂÁö¿ä/?
(4)
Á¤¿ë¿ì
2010-09
10133
0
window 7 ¿¡¼ 2TbÀÌ»ó ÀνÄÇÏ´ÂÁö¿ä/?
(4)
2010-09 10133
1
Á¤¿ë¿ì
32202
Äܵ§¼ ±Ø¼º Áú¹®ÀÔ´Ï´Ù.
(7)
Àϱ¹
2018-05
7387
0
Äܵ§¼ ±Ø¼º Áú¹®ÀÔ´Ï´Ù.
(7)
2018-05 7387
1
Àϱ¹
32201
±×·¡ÇÈ Ä«µå »õ·Î »ç·Á°í ÇÕ´Ï´Ù
(11)
ÀǷӰԻ츮¶ó
2023-10
2002
0
±×·¡ÇÈ Ä«µå »õ·Î »ç·Á°í ÇÕ´Ï´Ù
(11)
2023-10 2002
1
ÀǷӰԻ츮¶ó
32200
ÆäÀÌÆÈ ¹®Á¦ ÇØ°á ÁøÇà¿¡ ´ëÇÑ Á¶¾ðÀ» ±¸ÇÕ´Ï´Ù.
(1)
ÀÌÁ¾¿ø
2010-09
8009
0
ÆäÀÌÆÈ ¹®Á¦ ÇØ°á ÁøÇà¿¡ ´ëÇÑ Á¶¾ðÀ» ±¸¡¦
(1)
2010-09 8009
1
ÀÌÁ¾¿ø
4071
4072
4073
4074
4075
4076
(current)
4077
4078
4079
4080
4076
(current)
4077
4078
4079
4080
¸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.