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
Job
more
·¯½ºÅ© µ¥½ºÅ© À¯¡¦
(3)
Mikrotik ¶ó¿ìÅÍ ¡¦
(4)
[±¸ÀÎ] ¾ÆÀ̺ñÀÎÆ÷¡¦
Áß¼Ò±â¾÷ Àü»ê½Ç ¡¦
(12)
ÄüÀ̳ª ¿ë´Þ ÇÏ´Â ¡¦
(15)
ÁÖ´ÏÆÛ l2 l3 ±¸¼º¡¦
(1)
¸ñ·Ï
¾²±â
¸ñ·Ï
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
ÇÑŵ¿
2009-10
2009-10-31 11:06:53
Á¶È¸ 9216 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
3100/5689
¹øÈ£
Á¦¸ñ
Page 3100/5689
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(728)
Á¤ÀºÁØ1
2014-05
5010302
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(728)
2014-05 5010302
1
Á¤ÀºÁØ1
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1546010
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1546010
1
¹é¸Þ°¡
51795
m6600 ¿öÅ©½ºÅ×ÀÌ¼Ç Àä. Ä«Åå ÆäÀ̽ºÅåÀÌ ¾ÈµÇ´Âµ¥¿ä. µå¶óÀ̹ö¸¦ ¾î¶² °É·Î ±ò¡¦
(11)
½ÅÀº¿Ö
2019-03
4413
0
m6600 ¿öÅ©½ºÅ×ÀÌ¼Ç Àä. Ä«Åå ÆäÀ̽º¡¦
(11)
2019-03 4413
1
½ÅÀº¿Ö
51794
20ÄÚ¾î 40¾²·¹µå ÀÌ°Å ¾î¶»°Ô óºÐÇؾßÇÒ±î¿ä;
(6)
½Ã¿ÀÈÅÀÌ
2020-05
3858
0
20ÄÚ¾î 40¾²·¹µå ÀÌ°Å ¾î¶»°Ô óºÐÇؾßÇÒ¡¦
(6)
2020-05 3858
1
½Ã¿ÀÈÅÀÌ
51793
[Áú¹®] Tiger100 CPU ÁöÁö´ë 1Á¶¸¦ ±¸¸ÅÇÒ¼ö Àִ°÷ÀÌ ÀÖÀ»±î¿ä?
(6)
ÀÌÈ£¼®
2003-09
8031
11
[Áú¹®] Tiger100 CPU ÁöÁö´ë 1Á¶¸¦ ±¸¸ÅÇÒ¡¦
(6)
2003-09 8031
1
ÀÌÈ£¼®
51792
½Ç»ç¿ë½Ã L5430, E5450, X5450ÀÇ Â÷ÀÌ´Â ¾î´ÀÁ¤µµÀΰ¡¿ä?
(8)
±è¹ÎöGC
2014-08
17063
0
½Ç»ç¿ë½Ã L5430, E5450, X5450ÀÇ Â÷ÀÌ´Â ¡¦
(8)
2014-08 17063
1
±è¹ÎöGC
51791
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
ÇÑŵ¿
2009-10
9217
0
ÁøÆø ±×¸²±¸Çϴ¹æ¹ýÁ» ¾Ë·ÁÁÖ¼¼¿ä.
(5)
2009-10 9217
1
ÇÑŵ¿
51790
¸Þ¸ð¸® ȣȯ¹®Á¦
(3)
¹Ì´ã
2014-08
4184
0
¸Þ¸ð¸® ȣȯ¹®Á¦
(3)
2014-08 4184
1
¹Ì´ã
51789
Ȥ½Ã ÆÄÆ®ÀͽºÇÁ·¹½º¿¡¼ ¹°°Ç ±¸ÀÔÇØ º¸½Å ºÐ °è½Å°¡¿ä?
(3)
À嵿°Ç2014
2016-11
4745
0
Ȥ½Ã ÆÄÆ®ÀͽºÇÁ·¹½º¿¡¼ ¹°°Ç ±¸ÀÔÇØ º¸¡¦
(3)
2016-11 4745
1
À嵿°Ç2014
51788
µð½ºÅ© °ü¸®¿¡ µð½ºÅ©°¡ ¾ø½À´Ï´Ù.
(1)
¿ø³«¿¬
2003-09
12252
67
µð½ºÅ© °ü¸®¿¡ µð½ºÅ©°¡ ¾ø½À´Ï´Ù.
(1)
2003-09 12252
1
¿ø³«¿¬
51787
»çÀÌÆ® Á¢¼Ó½Ã ¹ÙÀÌ·¯½º ¶ß´Â °Í¿¡ ´ëÇÑ ´ëó¹ý
(3)
Â÷Æò¼®
2009-11
6457
0
»çÀÌÆ® Á¢¼Ó½Ã ¹ÙÀÌ·¯½º ¶ß´Â °Í¿¡ ´ëÇÑ ¡¦
(3)
2009-11 6457
1
Â÷Æò¼®
51786
usbºÎÆýà usbÀÎ½Ä ¾ÈµÉ¶§ ¹®ÀÇ
(9)
ÇåÅÍD
2021-10
6417
0
usbºÎÆýà usbÀÎ½Ä ¾ÈµÉ¶§ ¹®ÀÇ
(9)
2021-10 6417
1
ÇåÅÍD
51785
¼¹ö¿¡ ÀÎÅÚ I ½Ã¸®Áî°¡ µé¾î°¥ ¼ö ÀÖ³ª¿ä>
(9)
¼¹ö°°ÀºÀλý
2023-05
3069
0
¼¹ö¿¡ ÀÎÅÚ I ½Ã¸®Áî°¡ µé¾î°¥ ¼ö ÀÖ³ª¿ä¡¦
(9)
2023-05 3069
1
¼¹ö°°ÀºÀλý
51784
³ëÆ®ºÏ °ü·Ã Áú¹®ÀÔ´Ï´Ù.
(6)
¹ÚÁ¾ÀÍ
2003-09
11622
74
³ëÆ®ºÏ °ü·Ã Áú¹®ÀÔ´Ï´Ù.
(6)
2003-09 11622
1
¹ÚÁ¾ÀÍ
51783
usb 3.0 ŸÀÔÀÇ ·£Ä«µåµµ wolÀÌ µÇ³ª¿ä?
(6)
±è°Ç¿ì
2016-11
8195
0
usb 3.0 ŸÀÔÀÇ ·£Ä«µåµµ wolÀÌ µÇ³ª¿ä?
(6)
2016-11 8195
1
±è°Ç¿ì
51782
µ¨ ¼¹öÀÇ ³×Àֿ̹¡ ¹ýÄ¢ÀÌ ÀÖ³ª¿ä?
(13)
Sikieiki
2018-01
3397
0
µ¨ ¼¹öÀÇ ³×Àֿ̹¡ ¹ýÄ¢ÀÌ ÀÖ³ª¿ä?
(13)
2018-01 3397
1
Sikieiki
51781
ºê¶ó¿ìÀúµé ÀÎÁõ¼ °æ°í ¹ÙÀÌÆнºÇÒ ¹æ¹ýÀÌ ÀÖÀ»±î¿ä?
(22)
sbg2005
2023-05
2372
0
ºê¶ó¿ìÀúµé ÀÎÁõ¼ °æ°í ¹ÙÀÌÆнºÇÒ ¹æ¹ý¡¦
(22)
2023-05 2372
1
sbg2005
51780
µ¿³×ÀÇ¿ø±Þ¿¡¼ Àú·ÅÇÏ°Ô »ç¿ë°¡´ÉÇÑ Çϵå¿þ¾îÀû ¹æ¾îº®±â±â°¡ ÀÖÀ»±î¿ä?
(8)
ÀÌÀ±ÁÖ
2015-12
3886
0
µ¿³×ÀÇ¿ø±Þ¿¡¼ Àú·ÅÇÏ°Ô »ç¿ë°¡´ÉÇÑ Çϵ塦
(8)
2015-12 3886
1
ÀÌÀ±ÁÖ
51779
Ȥ½Ã ¼øȯÆßÇÁ ¼ö¸®Çغ¸½ÅºÐÀ̳ª ¼ö¸®°¡´ÉÇÑ°÷ ¾Æ½Ã³ª¿ä
(5)
³ª³ª³ª³ª³ª
2021-10
2590
0
Ȥ½Ã ¼øȯÆßÇÁ ¼ö¸®Çغ¸½ÅºÐÀ̳ª ¼ö¸®°¡´É¡¦
(5)
2021-10 2590
1
³ª³ª³ª³ª³ª
51778
°íÀå³ º¸µå, ȸ·Î±âÆǵîÀº ¾î¶»°Ô ¹ö·Á¾ß ÇÒ±î¿ä?
(4)
±è¿ìÁø
2013-01
6623
0
°íÀå³ º¸µå, ȸ·Î±âÆǵîÀº ¾î¶»°Ô ¹ö·Á¾ß¡¦
(4)
2013-01 6623
1
±è¿ìÁø
51777
ÀÎÅÚ ·¹À̵å Ä«µå....±Ã±ÝÇØ¿ä~
(12)
õ¿Üõoo³ë¡¦
2014-08
4492
0
ÀÎÅÚ ·¹À̵å Ä«µå....±Ã±ÝÇØ¿ä~
(12)
2014-08 4492
1
õ¿Üõoo³ë¡¦
51776
·£¼¶¿þ¾î ´ëºñÇؼ Çϵåµð½ºÅ© on off ¹®Àǵ帳´Ï´Ù~
¾ËÆÄ°í
2016-11
3807
0
·£¼¶¿þ¾î ´ëºñÇؼ Çϵåµð½ºÅ© on off ¹®¡¦
2016-11 3807
1
¾ËÆÄ°í
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
(current)
3096
3097
3098
3099
3100
(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.