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¸ 9233 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
4091/5700
¹øÈ£
Á¦¸ñ
Page 4091/5700
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(230)
¹é¸Þ°¡
2015-12
1587513
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(230)
2015-12 1587513
1
¹é¸Þ°¡
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(732)
Á¤ÀºÁØ1
2014-05
5051219
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(732)
2014-05 5051219
1
Á¤ÀºÁØ1
32195
Çϵåµð½ºÅ©.. ¸ØÃè´Ù°¡ Àç½ÃÀÛÇϴ°Å.. Á×±â Á÷ÀüÀΰÅÁÒ?
(7)
¹Ú»ó¹ü
2009-10
9403
0
Çϵåµð½ºÅ©.. ¸ØÃè´Ù°¡ Àç½ÃÀÛÇϴ°Å.. Áס¦
(7)
2009-10 9403
1
¹Ú»ó¹ü
32194
1920X1080ÀúÀå tvÄ«µå Ãßõ.
(3)
ÀÌÁø¼ö
2009-10
7847
0
1920X1080ÀúÀå tvÄ«µå Ãßõ.
(3)
2009-10 7847
1
ÀÌÁø¼ö
32193
À©µµ¿ì7 64ºñÆ® ±ò¾Ò´Âµ¥¿ä ½ÃÀÛÇÏ°í ¿ÖÄÉ Çϵ常 ÀоÁÒ..
(2)
¹Ú»ó¹ü
2009-10
8157
0
À©µµ¿ì7 64ºñÆ® ±ò¾Ò´Âµ¥¿ä ½ÃÀÛÇÏ°í ¿ÖÄÉ¡¦
(2)
2009-10 8157
1
¹Ú»ó¹ü
32192
¸ð´ÏÅÍ Àü¿ø ÅÍÄ¡¹®Á¦? ¸ð´ÏÅͼö¸®³ª À߾ƽôºР´äº¯Á»ÁÖ¼¼¿ä.^^
(1)
¹é½Âö
2009-10
10601
0
¸ð´ÏÅÍ Àü¿ø ÅÍÄ¡¹®Á¦? ¸ð´ÏÅͼö¸®³ª À߾ơ¦
(1)
2009-10 10601
1
¹é½Âö
32191
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
ÇÑŵ¿
2009-10
9234
0
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
2009-10 9234
1
ÇÑŵ¿
32190
¾Ç±â ¾ÚÇÁ¿¡ °üÇÑ Áú¹®ÀÔ´Ï´Ù.
(2)
±èÈ¿¼ö
2009-10
6481
0
¾Ç±â ¾ÚÇÁ¿¡ °üÇÑ Áú¹®ÀÔ´Ï´Ù.
(2)
2009-10 6481
1
±èÈ¿¼ö
32189
[Áú¹®] À¢µð ÇÏµå ½Ã¸®¾óÀÌ À¯Åë»ç ȨÆäÀÌÁö¿¡¼ Á¶È¸°¡ ¾ÈµÇ³×¿ä.
(3)
ÀϹÝÀ¯Àú
2009-10
10152
0
[Áú¹®] À¢µð ÇÏµå ½Ã¸®¾óÀÌ À¯Åë»ç ȨÆäÀÌ¡¦
(3)
2009-10 10152
1
ÀϹÝÀ¯Àú
32188
À©µµ¿ì ºÎÆýà Áú¹®ÀÔ´Ï´Ù
(1)
psj1050
2009-10
6104
0
À©µµ¿ì ºÎÆýà Áú¹®ÀÔ´Ï´Ù
(1)
2009-10 6104
1
psj1050
32187
³ëÆ®ºÏ ¸ÞÀκ¸µå ¹«»óAS ±â°£ÀÌ ¾ó¸¸°¡¿ä?
(8)
µþ±â´ëÀå
2009-10
16193
0
³ëÆ®ºÏ ¸ÞÀκ¸µå ¹«»óAS ±â°£ÀÌ ¾ó¸¸°¡¿ä?
(8)
2009-10 16193
1
µþ±â´ëÀå
32186
win7 29320µå¶óÀ̹ö
(2)
¿ÀŽÂ
2009-10
6221
0
win7 29320µå¶óÀ̹ö
(2)
2009-10 6221
1
¿ÀŽÂ
32185
°Á¦·Î Àü¿øÀ» ³»¸° ÈÄ È¸éÀÌ ¾Èµé¾î ¿Â´Ù°í ÇÕ´Ï´Ù.
(2)
ÀåÅÂÁÖ
2009-10
6317
0
°Á¦·Î Àü¿øÀ» ³»¸° ÈÄ È¸éÀÌ ¾Èµé¾î ¿Â¡¦
(2)
2009-10 6317
1
ÀåÅÂÁÖ
32184
·£Ä«µå´Â ¾îµð·Î °¬´Â°¡? (2)
(3)
À̱â¹é
2009-10
8992
0
·£Ä«µå´Â ¾îµð·Î °¬´Â°¡? (2)
(3)
2009-10 8992
1
À̱â¹é
32183
Àü¿øÄڵ常 ¿¬°áÇصµ ÀÚµ¿ºÎÆÃÀÌ µË´Ï´Ù...
(3)
ÀÎÄ¡ÁØ
2009-10
11814
0
Àü¿øÄڵ常 ¿¬°áÇصµ ÀÚµ¿ºÎÆÃÀÌ µË´Ï´Ù...
(3)
2009-10 11814
1
ÀÎÄ¡ÁØ
32182
¹®ÀÌ »ß°Æ°Å¸³´Ï´Ù.
(10)
±èÈ¿¼ö
2009-10
10229
0
¹®ÀÌ »ß°Æ°Å¸³´Ï´Ù.
(10)
2009-10 10229
1
±èÈ¿¼ö
32181
À¥¼¹öÀÇ °¡»óÈ£½ºÆ® ¼³Á¤Áú¹®ÀÔ´Ï´Ù.
(2)
±è»óÀÏ
2009-10
6156
0
À¥¼¹öÀÇ °¡»óÈ£½ºÆ® ¼³Á¤Áú¹®ÀÔ´Ï´Ù.
(2)
2009-10 6156
1
±è»óÀÏ
32180
À©µµ¿ì xpȨ dsp Á¤Ç°»ç·Á°í Çϴµ¥ ¹ÏÀ»¸¸Çѵ¥°¡ ¾ø³×¿ä.
(2)
Ǫ¸ªÀÌ
2009-10
8224
0
À©µµ¿ì xpȨ dsp Á¤Ç°»ç·Á°í Çϴµ¥ ¹ÏÀ»¡¦
(2)
2009-10 8224
1
Ǫ¸ªÀÌ
32179
CPUÀÇ ¼±ÅÃ
(13)
Â÷Æò¼®
2009-10
6291
0
CPUÀÇ ¼±ÅÃ
(13)
2009-10 6291
1
Â÷Æò¼®
32178
ħ´ë ÃßõºÎŹµå¸³´Ï´Ù.^^
(7)
Ǫ¸ªÀÌ
2009-10
6428
0
ħ´ë ÃßõºÎŹµå¸³´Ï´Ù.^^
(7)
2009-10 6428
1
Ǫ¸ªÀÌ
32177
apple xserve .. ÀÏ¹Ý ideÇϵå·Î »ç¿ë°¡´ÉÇÒ±î¿ä?
(5)
ÀÌ¿µ±Ô
2009-10
6533
0
apple xserve .. ÀÏ¹Ý ideÇϵå·Î »ç¿ë°¡´É¡¦
(5)
2009-10 6533
1
ÀÌ¿µ±Ô
32176
CCTV ÀúÀå¿ë ÇÏµå µð½ºÅ© º¹±¸ ¹®ÀÇ µå¸³´Ï´Ù
(4)
¸¸´É¾ß¸Å
2009-10
14779
0
CCTV ÀúÀå¿ë ÇÏµå µð½ºÅ© º¹±¸ ¹®ÀÇ µå¸³¡¦
(4)
2009-10 14779
1
¸¸´É¾ß¸Å
4091
(current)
4092
4093
4094
4095
4096
4097
4098
4099
4100
4091
(current)
4092
4093
4094
4095
¸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.