Skip navigation
(228)
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀΡ¦
(728)
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ»¡¦
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¸ 9186 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
4077/5687
¹øÈ£
Á¦¸ñ
Page 4077/5687
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1529548
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1529548
1
¹é¸Þ°¡
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(728)
Á¤ÀºÁØ1
2014-05
4993619
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(728)
2014-05 4993619
1
Á¤ÀºÁØ1
32210
Áú¹®ÇØ¿ä! Æø½ºÄܲ¨ c602 ¸ÞÀκ¸µå ¤Ð
(5)
Ä«¼Ò½Ã½º
2017-11
3773
0
Áú¹®ÇØ¿ä! Æø½ºÄܲ¨ c602 ¸ÞÀκ¸µå ¤Ð
(5)
2017-11 3773
1
Ä«¼Ò½Ã½º
32209
¿¢¼¿¸ÅÅ©·Î ÀÚµ¿È ¹®¼ Â¥·Á¸é Âü°í¹®¼³ª ±³Àç°°Àº°Ô ¾î¶²°Ô ÀÖ³ª¿ä?
(1)
±è°Ç¿ì
2015-08
3773
0
¿¢¼¿¸ÅÅ©·Î ÀÚµ¿È ¹®¼ Â¥·Á¸é Âü°í¹®¼¡¦
(1)
2015-08 3773
1
±è°Ç¿ì
32208
À©µµ¿ìÅÇ
·Î±×¾Æ¿ô
2015-08
3773
0
À©µµ¿ìÅÇ
2015-08 3773
1
·Î±×¾Æ¿ô
32207
[ ¹ÌÅ©·Îƽ ] ¿ÜºÎ¿¡¼ SSH forwarding ÅͳÎÀ» ¹Þ¾ÆÁÙ ¼ö ÀÖ´ÀÁö¿ä ?
(3)
Àü¼³¼ÓÀǹ̡¦
2017-01
3772
0
[ ¹ÌÅ©·Îƽ ] ¿ÜºÎ¿¡¼ SSH forwarding ÅÍ¡¦
(3)
2017-01 3772
1
Àü¼³¼ÓÀǹ̡¦
32206
Gigabite EP45-DS3 º¸µå °³Á¶ ¹ÙÀÌ¿À½º ºÎŹµå¸³´Ï´Ù.
(4)
Àú½ºÆ®
2015-03
3772
0
Gigabite EP45-DS3 º¸µå °³Á¶ ¹ÙÀÌ¿À½º ºÎ¡¦
(4)
2015-03 3772
1
Àú½ºÆ®
32205
RB1100AHx2 (¹ÌÅ©·Îƽ) ¾î¶²°¡¿ä?
(4)
ºü½Ã¿Â
2014-07
3772
1
RB1100AHx2 (¹ÌÅ©·Îƽ) ¾î¶²°¡¿ä?
(4)
2014-07 3772
1
ºü½Ã¿Â
32204
³×Æ®¿öÅ© ¹¹°¡ ¹®Á¦Àϱî¿ä?
(11)
ÄĹÚ
2017-11
3772
0
³×Æ®¿öÅ© ¹¹°¡ ¹®Á¦Àϱî¿ä?
(11)
2017-11 3772
1
ÄĹÚ
32203
x3470 Äð·¯ ¹®ÀÇ
¸ÞÆ®
2018-05
3772
0
x3470 Äð·¯ ¹®ÀÇ
2018-05 3772
1
¸ÞÆ®
32202
Çì³î¿¡¼ ftp¾÷·Îµå ½Ã, ÀÌÀü Á¢¼ÓÁßÀÎ »ç¶÷ÀÇ ¾÷·Îµå ²÷±è Çö»óÀÌ ¹ß»ýÇÕ´Ï´Ù
(3)
¹«¸íÀÎ12
2018-07
3772
0
Çì³î¿¡¼ ftp¾÷·Îµå ½Ã, ÀÌÀü Á¢¼ÓÁßÀÎ »ç¡¦
(3)
2018-07 3772
1
¹«¸íÀÎ12
32201
Z-820 ·¥ ÀÎ½Ä ÇÑ°èÄ¡ °ü·Ã
(6)
ÁÖ¿µÁø¿µ¾Æºü
2015-06
3772
0
Z-820 ·¥ ÀÎ½Ä ÇÑ°èÄ¡ °ü·Ã
(6)
2015-06 3772
1
ÁÖ¿µÁø¿µ¾Æºü
32200
°ÈÀ¯¸®°¡ ±úÁ³¾î¿ä.
(8)
Çູã±â
2019-07
3772
0
°ÈÀ¯¸®°¡ ±úÁ³¾î¿ä.
(8)
2019-07 3772
1
Çູã±â
32199
¾È³çÇϼ¼¿ä ±â°¡ 965p-s3 °³Á¶¹ÙÀÌ¿À½º ºÎŹµå¸³´Ï´Ù
(5)
long
2016-03
3772
0
¾È³çÇϼ¼¿ä ±â°¡ 965p-s3 °³Á¶¹ÙÀÌ¿À½º ºÎ¡¦
(5)
2016-03 3772
1
long
32198
k600¿ë ÀÏ¹Ý ºê¶óÄÏ ±¸ÇÒ¼ö Àִ°÷ ? ÀÖÀ»°¡¿ä?
(4)
°ÉÀνÅȫö
2016-09
3772
0
k600¿ë ÀÏ¹Ý ºê¶óÄÏ ±¸ÇÒ¼ö Àִ°÷ ? ÀÖÀ»¡¦
(4)
2016-09 3772
1
°ÉÀνÅȫö
32197
DID ? »çÀÌ´ÏÁö? ÀÌ·±°Í ÄÁÆ®·Ñ ÇÏ´Â ¿ÀǼҽºµµ ÀÖÀ»±î¿ä?
(7)
Ȧ¸¯0o0
2022-01
3772
0
DID ? »çÀÌ´ÏÁö? ÀÌ·±°Í ÄÁÆ®·Ñ ÇÏ´Â ¿ÀÇ¡¦
(7)
2022-01 3772
1
Ȧ¸¯0o0
32196
¿ÍÀÌÆÄÀÌÁ¦ÇѵÊ떄¹®¿¡ ´Ù¿î±×·¹À̵åÇÏ·Á°íÇϴµ¥¿ä
(2)
·çºñ¾Æºü
2018-04
3772
0
¿ÍÀÌÆÄÀÌÁ¦ÇѵÊ떄¹®¿¡ ´Ù¿î±×·¹À̵塦
(2)
2018-04 3772
1
·çºñ¾Æºü
32195
utp ÄÉÀÌºí ¼³Ä¡ Áú¹®ÀÔ´Ï´Ù.
(4)
ÄñôÄñô
2016-07
3772
0
utp ÄÉÀÌºí ¼³Ä¡ Áú¹®ÀÔ´Ï´Ù.
(4)
2016-07 3772
1
ÄñôÄñô
32194
Ŭ¶ó¿ìµå ¼¹ö Áú¹®ÀÔ´Ï´Ù.
(1)
VerVeine
2016-06
3772
0
Ŭ¶ó¿ìµå ¼¹ö Áú¹®ÀÔ´Ï´Ù.
(1)
2016-06 3772
1
VerVeine
32193
PCI ³ª PCI-x ¿ë IDE ÄÁÆ®·Ñ·¯ Ä«µå°¡ ÀÖ³ª¿ä?
(6)
VSPress
2014-06
3772
0
PCI ³ª PCI-x ¿ë IDE ÄÁÆ®·Ñ·¯ Ä«µå°¡ ÀÖ¡¦
(6)
2014-06 3772
1
VSPress
32192
°³¹ß¿ë¸Ó½Å Á¶¾ð ºÎŹ µå¸³´Ï´Ù.
(3)
ÀÌÁöÆ÷Åä
2017-03
3772
0
°³¹ß¿ë¸Ó½Å Á¶¾ð ºÎŹ µå¸³´Ï´Ù.
(3)
2017-03 3772
1
ÀÌÁöÆ÷Åä
32191
2.5ÀÎÄ¡ HDD´Â ¼ÒÀ½ÀÌ Á» ÀÛÀº°¡¿ä?
(15)
¸ùµ¿ÀÌ
2021-10
3772
0
2.5ÀÎÄ¡ HDD´Â ¼ÒÀ½ÀÌ Á» ÀÛÀº°¡¿ä?
(15)
2021-10 3772
1
¸ùµ¿ÀÌ
4071
4072
4073
4074
4075
4076
4077
(current)
4078
4079
4080
4076
4077
(current)
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.