matlab-Chap10

matlab-Chap10


뗚10헂 뛠 쿮 쪽


10.1 룹


헒돶뛠쿮쪽뗄룹ꎬ벴뛠쿮쪽캪쇣뗄횵ꎬ뿉쓜쫇탭뛠톧뿆릲춬뗄컊쳢ꎬꆣMATLAB쟳뷢헢룶
컊쳢ꎬ늢쳡릩웤쯼뗄뛠쿮쪽닙ퟷ릤뻟ꆣ퓚MATLAB샯ꎬ뛠쿮쪽평튻룶탐쿲솿뇭쪾ꎬ쯼뗄쾵쫽
쫇내붵탲업쇐ꆣ샽죧ꎬ쫤죫뛠쿮쪽x4ꎭ12x3ꎫ0x2ꎫ25xꎫ116

Ⴛ p=[1 -12 0 25 116]
p =
1 -12 0 25 116


힢틢ꎬ뇘탫냼삨뻟폐쇣쾵쫽뗄쿮ꆣ돽럇쳘뇰뗘뇦죏ꎬMATLAB컞램횪뗀쓄튻쿮캪쇣ꆣ룸돶
헢훖탎쪽ꎬ폃몯쫽roots헒돶튻룶뛠쿮쪽뗄룹ꆣ

Ⴛ r=roots(p)
r =
11.7473
2.7028
-1.2251 + 1.4672i
-1.2251 - 1.4672i


틲캪퓚MATLAB훐ꎬ컞싛쫇튻룶뛠쿮쪽ꎬ뮹쫇쯼뗄룹ꎬ뚼쫇쿲솿ꎬMATLAB내맟샽맦뚨ꎬ뛠
쿮쪽쫇탐쿲솿ꎬ룹쫇쇐쿲솿ꆣ룸돶튻룶뛠쿮쪽뗄룹ꎬ튲뿉틔릹퓬쿠펦뗄뛠쿮쪽ꆣ퓚MATL
AB훐ꎬ쏼쇮poly횴탐헢룶죎컱ꆣ

Ⴛ pp=poly(r)
pp =
1.0e+002 *
Columns 1 through 4
0.0100 -0.1200 0.0000 0.2500

Column 5
1.1600 + 0.0000i

Ⴛ p