Skip navigation
(719)
[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¸ 8954 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
3982/5609
¹øÈ£
Á¦¸ñ
Page 3982/5609
±Û¾´ÀÌ
³¯Â¥
Á¶È¸
̵̧
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(719)
Á¤ÀºÁØ1
2014-05
4575605
0
[Çʵ¶] óÀ½ ¿À½Ã´Â ºÐÀ» À§ÇÑ ¾È³»
(719)
2014-05 4575605
1
Á¤ÀºÁØ1
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(ver2.0)
(228)
¹é¸Þ°¡
2015-12
1124264
25
(±¤°í) ´ÜÅë¹ý ½Ã´ëÀÇ ÀÎÅͳݰ¡ÀÔ °¡À̵å(¡¦
(228)
2015-12 1124264
1
¹é¸Þ°¡
32549
Á˼ÛÇÕ´Ï´Ù.
(4)
¿äüŶ
2009-12
6012
0
Á˼ÛÇÕ´Ï´Ù.
(4)
2009-12 6012
1
¿äüŶ
32548
[ÇØ°á] ÀÌ·±°æ¿ì ¾î¶»°Ô Çϴ°ÍÀÌ ÁÁÀº°¡¿ä.? À̸ÞÀÏ¹× µ¥ÀÌÅÍ °øÀ¯
(11)
³ª³Ê¿ì¸®
2009-12
5952
0
[ÇØ°á] ÀÌ·±°æ¿ì ¾î¶»°Ô Çϴ°ÍÀÌ ÁÁÀº°¡¡¦
(11)
2009-12 5952
1
³ª³Ê¿ì¸®
32547
KVMÀº OSƯ¼ºÀ» Ÿ³ª¿ä?
(4)
±è°Ç¿ì
2009-12
6991
0
KVMÀº OSƯ¼ºÀ» Ÿ³ª¿ä?
(4)
2009-12 6991
1
±è°Ç¿ì
32546
ÀÎÅÚ CPU A/S°ü·Ã¿ä ¹æ¹ýÀÌ ¾øÀ»±î¿ä
(7)
½Å°ü¾Ç»ê
2009-12
7042
0
ÀÎÅÚ CPU A/S°ü·Ã¿ä ¹æ¹ýÀÌ ¾øÀ»±î¿ä
(7)
2009-12 7042
1
½Å°ü¾Ç»ê
32545
cpu Äð·¯°¡ ºÒ·®ÀÌ¸é ¹Ú½º 1:1 ±³È¯Çصµ µÉ±î¿ä?
(14)
À̵¿Àç
2009-12
7199
0
cpu Äð·¯°¡ ºÒ·®ÀÌ¸é ¹Ú½º 1:1 ±³È¯Çصµ ¡¦
(14)
2009-12 7199
1
À̵¿Àç
32544
2TBÇϵå Ãßõ ºÎŹµå¸³´Ï´Ù.
(12)
GoodWolf
2009-12
9002
0
2TBÇϵå Ãßõ ºÎŹµå¸³´Ï´Ù.
(12)
2009-12 9002
1
GoodWolf
32543
SCSI ÇϵåÀÇ °íÁÖÆÄÀ½À¸·Î RMA ¹ÞÀ» ¼ö ÀÖÀ»±î¿ä?
(20)
Â÷Æò¼®
2009-12
7852
0
SCSI ÇϵåÀÇ °íÁÖÆÄÀ½À¸·Î RMA ¹ÞÀ» ¼ö ÀÖ¡¦
(20)
2009-12 7852
1
Â÷Æò¼®
32542
À¯¼±Àüȱâ 2´ë·Î 1:1 ÇÖ¶óÀÎ ¿¬°áÇÏ°í½ÍÀºµ¥...
(7)
À±¿ë¼ö
2009-12
13142
0
À¯¼±Àüȱâ 2´ë·Î 1:1 ÇÖ¶óÀÎ ¿¬°áÇÏ°í½Í¡¦
(7)
2009-12 13142
1
À±¿ë¼ö
32541
ƯÁ¤ ÇÁ·Î¼¼½º°¡ ²¨Áö´Â°É ¹æÁöÇÒ¼ö ÀÖÀ»±î¿ä?
(4)
Á¤Èñ¼·
2009-12
7351
0
ƯÁ¤ ÇÁ·Î¼¼½º°¡ ²¨Áö´Â°É ¹æÁöÇÒ¼ö ÀÖÀ»¡¦
(4)
2009-12 7351
1
Á¤Èñ¼·
32540
¿µ»óÆíÁý ÀÛ¾÷½Ã Äõµå·Î°¡ ±¦ÂúÀºÁö¿ä?
(6)
Æ®¶óÀ̾ޱÛ
2009-12
8113
0
¿µ»óÆíÁý ÀÛ¾÷½Ã Äõµå·Î°¡ ±¦ÂúÀºÁö¿ä?
(6)
2009-12 8113
1
Æ®¶óÀ̾ޱÛ
32539
[¹®ÀÇ] X8STE ȣȯ¼º ¹®ÀÇ ¹× ECC-REG ¿¡ ´ëÇؼ ¹®ÀÇ µå¸³´Ï´Ù.
(3)
¹¹¶óÄ«³ë
2009-12
7884
0
[¹®ÀÇ] X8STE ȣȯ¼º ¹®ÀÇ ¹× ECC-REG ¿¡ ¡¦
(3)
2009-12 7884
1
¹¹¶óÄ«³ë
32538
Via pcmcia 2.0 4Æ÷Ʈ¥¸® µå¶óÀ̹ö°¡ ¾È±ò¸³´Ï´Ù.
(2)
Ǫ¸ªÀÌ
2009-12
5882
0
Via pcmcia 2.0 4Æ÷Ʈ¥¸® µå¶óÀ̹ö°¡ ¾È¡¦
(2)
2009-12 5882
1
Ǫ¸ªÀÌ
32537
À©µµ¿ì7 x64¿¡¼ µå¶óÀ̹ö °Á¦ ÀνÄ?
(5)
¿ÀÀçÈ£
2009-12
9704
0
À©µµ¿ì7 x64¿¡¼ µå¶óÀ̹ö °Á¦ ÀνÄ?
(5)
2009-12 9704
1
¿ÀÀçÈ£
32536
±¤ÁÖ¿¡¼ ¸Æ½ºÅÍ 15k2 a/s ¹Þ´Â ¹ý
(2)
Â÷Æò¼®
2009-12
6362
0
±¤ÁÖ¿¡¼ ¸Æ½ºÅÍ 15k2 a/s ¹Þ´Â ¹ý
(2)
2009-12 6362
1
Â÷Æò¼®
32535
VGA] QUADRO NVS °£´ÜÇÑ ¹®ÀÇ µå¸³´Ï´Ù.
(8)
overtrue
2009-12
7930
0
VGA] QUADRO NVS °£´ÜÇÑ ¹®ÀÇ µå¸³´Ï´Ù.
(8)
2009-12 7930
1
overtrue
32534
ÀÌ HDD ºñÁ¤»óÀ̶ó°í ºÁ¾ß°ÚÁÒ?
(2)
¹Ú°æÈ£
2009-12
6876
0
ÀÌ HDD ºñÁ¤»óÀ̶ó°í ºÁ¾ß°ÚÁÒ?
(2)
2009-12 6876
1
¹Ú°æÈ£
32533
À©µµ¿ìÁî 7 ÇÁ·ÎÆä¼Å³Î 64BIT(DSP)¸¦ »ç¼ À©xp 64bit¸¦ ±ò¾Æµµ ±¦ÂúÀº°Ç°¡¿ä
(1)
ºí·ç¸ð¼Ç
2009-12
8348
0
À©µµ¿ìÁî 7 ÇÁ·ÎÆä¼Å³Î 64BIT(DSP)¸¦ »ç¼¡¦
(1)
2009-12 8348
1
ºí·ç¸ð¼Ç
32532
autocad¿¡¼ µµ¸éÀ» ¿¸é ¸Þ·Î¸®°¡ ºÎÁ·ÇÏ´Ù°í ÇÕ´Ï´Ù?
(2)
¹Î±Ô
2009-12
6144
0
autocad¿¡¼ µµ¸éÀ» ¿¸é ¸Þ·Î¸®°¡ ºÎÁ·ÇÏ¡¦
(2)
2009-12 6144
1
¹Î±Ô
32531
vpn¸ðµå·Î Á¢¼ÓÇÒ¶§¿ä... Áß°£¿¡ ÆÐŶ°°Àº°Å ³×Æ®¿öÅ©°ü¸®ÀÚ°¡ ¸øº¸³ª¿ä
(4)
¹Ú»ó¹ü
2009-12
6822
0
vpn¸ðµå·Î Á¢¼ÓÇÒ¶§¿ä... Áß°£¿¡ ÆÐŶ°°Àº¡¦
(4)
2009-12 6822
1
¹Ú»ó¹ü
32530
»ç³» ÆÄÀÏ°ü¸® ¾î¶»°Ô ÇϽʴϱî?
(6)
À¯¿µ±Ù
2009-12
7791
0
»ç³» ÆÄÀÏ°ü¸® ¾î¶»°Ô ÇϽʴϱî?
(6)
2009-12 7791
1
À¯¿µ±Ù
3981
3982
(current)
3983
3984
3985
3986
3987
3988
3989
3990
3981
3982
(current)
3983
3984
3985
¸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.