Skip navigation
(726)
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ»¡¦
(228)
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀΡ¦
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¸ 9154 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
2180/5680
¹øÈ£
Á¦¸ñ
Page 2180/5680
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1482975
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1482975
1
¹é¸Þ°¡
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(726)
Á¤ÀºÁØ1
2014-05
4946309
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(726)
2014-05 4946309
1
Á¤ÀºÁØ1
70013
QNAP NAS Àç¼³Á¤(¸ðµç ÃʱâÈ, ½Ã½ºÅÛ À缳ġ)À» ·Î±×ÀÎ ¾øÀÌ ½ÃÀÛÇÏ·Á¸é ¾î¶»°Ô ÇØ¡¦
(2)
VSPress
2022-04
2142
0
QNAP NAS Àç¼³Á¤(¸ðµç ÃʱâÈ, ½Ã½ºÅÛ À硦
(2)
2022-04 2142
1
VSPress
70012
À©µµ¿ìxp pro Á¤Ç°ÀÎÁõ ÇØ°áÇÒ¼ö ÀÖ³ª¿ä?
(6)
song05
2018-06
7004
0
À©µµ¿ìxp pro Á¤Ç°ÀÎÁõ ÇØ°áÇÒ¼ö ÀÖ³ª¿ä?
(6)
2018-06 7004
1
song05
70011
APC UPS Äܼ¾Æ®ÀÇ ¿ªÈ°
(5)
Æĸ®´ë¿Õ
2020-10
3398
0
APC UPS Äܼ¾Æ®ÀÇ ¿ªÈ°
(5)
2020-10 3398
1
Æĸ®´ë¿Õ
70010
HTML 5 / Style / MSSQL ¹è¿ï¼öÀÖ´Â ÁÁÀº ¹æ¹ýÀ̳ª Ã¥Á» ¾Ë·ÁÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù.
(7)
»ßµ¹À̽½ÇÄÀÌ
2015-01
4512
0
HTML 5 / Style / MSSQL ¹è¿ï¼öÀÖ´Â ÁÁÀº¡¦
(7)
2015-01 4512
1
»ßµ¹À̽½ÇÄÀÌ
70009
Çϵ庸°ü Áú¹®ÀÔ´Ï´Ù.
(17)
INMD
2022-04
1465
0
Çϵ庸°ü Áú¹®ÀÔ´Ï´Ù.
(17)
2022-04 1465
1
INMD
70008
windows server 2012 STD ·Î±×ÀÎÈÄ ´Ù½Ã ·Î±×ÀÎȸéÀ¸·Î ³Ñ¾î°¡´Â Çö»ó
(2)
mmdok
2023-11
988
0
windows server 2012 STD ·Î±×ÀÎÈÄ ´Ù½Ã ¡¦
(2)
2023-11 988
1
mmdok
70007
nas¿Í »½ÆÄ¿ö...
(3)
À±Ä¡¿
2011-01
7503
0
nas¿Í »½ÆÄ¿ö...
(3)
2011-01 7503
1
À±Ä¡¿
70006
MS ¿ÀÇǽº2007 SBE ¼³Ä¡ÆÄÀϸ¸ ±¸ÇÒ ¼ö ÀÖÀ»±î¿ä?
(5)
¾Óµå·¹ÁØ
2020-10
4366
0
MS ¿ÀÇǽº2007 SBE ¼³Ä¡ÆÄÀϸ¸ ±¸ÇÒ ¼ö ÀÖ¡¦
(5)
2020-10 4366
1
¾Óµå·¹ÁØ
70005
±âÁ¸ ³×Æ®¿öÅ©¿¡ ÀÎÅÍ³Ý °øÀ¯ÇÏ´Â ¹®Á¦
(6)
°¡ºü·Î±¸³ª
2011-01
7115
0
±âÁ¸ ³×Æ®¿öÅ©¿¡ ÀÎÅÍ³Ý °øÀ¯ÇÏ´Â ¹®Á¦
(6)
2011-01 7115
1
°¡ºü·Î±¸³ª
70004
ÇØ»óµµ 2560*1440 ³ëÆ®ºÏÀ» ³·Àº Çػ󵵷Π»ç¿ëÇϸé?
(10)
À縶
2016-04
11059
0
ÇØ»óµµ 2560*1440 ³ëÆ®ºÏÀ» ³·Àº Çػ󵵷Ρ¦
(10)
2016-04 11059
1
À縶
70003
iptime °øÀ¯±â¿Í ³»ºÎ ³×Æ®¿öÅ©ÀÇ pptpd
(4)
Á¤Èñ¼·
2011-01
20028
0
iptime °øÀ¯±â¿Í ³»ºÎ ³×Æ®¿öÅ©ÀÇ pptpd
(4)
2011-01 20028
1
Á¤Èñ¼·
70002
TX100¿¡ µé¾î°¥¸¸ÇÑ HDMI Áö¿øÇÏ´Â ÀúÀü·Â VGA°¡ ¹¹°¡ ÀÖÀ»±î¿ä?
(3)
Á¤Èñö2
2013-09
12760
0
TX100¿¡ µé¾î°¥¸¸ÇÑ HDMI Áö¿øÇÏ´Â ÀúÀü·Â¡¦
(3)
2013-09 12760
1
Á¤Èñö2
70001
USBÀÇ ¾ÈÁ¤¼º
(16)
¾Æ¸¶µ¥¿ì¾²
2023-12
1556
0
USBÀÇ ¾ÈÁ¤¼º
(16)
2023-12 1556
1
¾Æ¸¶µ¥¿ì¾²
70000
CentOS 7.9 ¼³Ä¡½Ã ¹®Á¦ ÀÔ´Ï´Ù.
(9)
missingrink
2022-04
7799
0
CentOS 7.9 ¼³Ä¡½Ã ¹®Á¦ ÀÔ´Ï´Ù.
(9)
2022-04 7799
1
missingrink
69999
ÇѾƽýºÅÛ Rustle 324c ÄܼÖÄÉÀÌºí ¹è¼±µµ¸¦ ¾Ë°í ½Í½À´Ï´Ù.
(1)
Á¶¸í¼ö
2011-01
9861
0
ÇѾƽýºÅÛ Rustle 324c ÄܼÖÄÉÀÌºí ¹è¼±¡¦
(1)
2011-01 9861
1
Á¶¸í¼ö
69998
Intel 350 t4 nic Çϵå¿þ¾î macÁÖ¼Ò º¯°æ???
(8)
»ßµ¹À̽½ÇÄÀÌ
2018-06
4061
0
Intel 350 t4 nic Çϵå¿þ¾î macÁÖ¼Ò º¯°æ?¡¦
(8)
2018-06 4061
1
»ßµ¹À̽½ÇÄÀÌ
69997
Àü¿ø¼± ¼ÒÀ½? ¹®Àǵ帳´Ï´Ù
(7)
Uinx
2023-12
1034
0
Àü¿ø¼± ¼ÒÀ½? ¹®Àǵ帳´Ï´Ù
(7)
2023-12 1034
1
Uinx
69996
HP Notebook 5330M RAM ±³Ã¼
(5)
³ª¿ì¸¶Å©
2016-04
4529
0
HP Notebook 5330M RAM ±³Ã¼
(5)
2016-04 4529
1
³ª¿ì¸¶Å©
69995
¼¹ö ±¸¸Å½Ã ¾Ë¾Æº¸´Â°÷
(8)
skzj
2020-11
2434
0
¼¹ö ±¸¸Å½Ã ¾Ë¾Æº¸´Â°÷
(8)
2020-11 2434
1
skzj
69994
HP Gen8 Gen9 ¸Þ¸ð¸® °ü·Ã
(4)
NGC
2017-03
3627
0
HP Gen8 Gen9 ¸Þ¸ð¸® °ü·Ã
(4)
2017-03 3627
1
NGC
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
(current)
2176
2177
2178
2179
2180
(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.