matlab如何解一元六次方程组如何求求解一元六次方程组 3 +12 +4 +7 +8x+1=0 的根这样做对不>> a=[3,12,4,7,0,8,1];>> p = poly(a)p =Columns 1 through 7 1 -35 471 -3085 10184 -15600 8064Column 8 0>> r = roots(p)r =012.00008.00007.
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![matlab如何解一元六次方程组如何求求解一元六次方程组 3 +12 +4 +7 +8x+1=0 的根这样做对不>> a=[3,12,4,7,0,8,1];>> p = poly(a)p =Columns 1 through 7 1 -35 471 -3085 10184 -15600 8064Column 8 0>> r = roots(p)r =012.00008.00007.](/uploads/image/z/6919274-2-4.jpg?t=matlab%E5%A6%82%E4%BD%95%E8%A7%A3%E4%B8%80%E5%85%83%E5%85%AD%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84%E5%A6%82%E4%BD%95%E6%B1%82%E6%B1%82%E8%A7%A3%E4%B8%80%E5%85%83%E5%85%AD%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%BB%84+3+%2B12+%2B4+%2B7+%2B8x%2B1%3D0+%E7%9A%84%E6%A0%B9%E8%BF%99%E6%A0%B7%E5%81%9A%E5%AF%B9%E4%B8%8D%3E%3E+a%3D%5B3%2C12%2C4%2C7%2C0%2C8%2C1%5D%3B%3E%3E+p+%3D+poly%28a%29p+%3DColumns+1+through+7+1+-35+471+-3085+10184+-15600+8064Column+8+0%3E%3E+r+%3D+roots%28p%29r+%3D012.00008.00007.)
matlab如何解一元六次方程组如何求求解一元六次方程组 3 +12 +4 +7 +8x+1=0 的根这样做对不>> a=[3,12,4,7,0,8,1];>> p = poly(a)p =Columns 1 through 7 1 -35 471 -3085 10184 -15600 8064Column 8 0>> r = roots(p)r =012.00008.00007.
matlab如何解一元六次方程组
如何求求解一元六次方程组 3 +12 +4 +7 +8x+1=0 的根
这样做对不
>> a=[3,12,4,7,0,8,1];
>> p = poly(a)
p =
Columns 1 through 7
1 -35 471 -3085 10184 -15600 8064
Column 8
0
>> r = roots(p)
r =
0
12.0000
8.0000
7.0000
4.0000
3.0000
1.0000
>>
方程组是这样的
3x6 +12x5 +4x4+7x3+8x+1=0
matlab如何解一元六次方程组如何求求解一元六次方程组 3 +12 +4 +7 +8x+1=0 的根这样做对不>> a=[3,12,4,7,0,8,1];>> p = poly(a)p =Columns 1 through 7 1 -35 471 -3085 10184 -15600 8064Column 8 0>> r = roots(p)r =012.00008.00007.
这样:
a=[3,12,4,7,0,8,1];
r=roots(a)
r =
-3.8230
-0.5275 + 0.8497i
-0.5275 - 0.8497i
0.5007 + 0.6749i
0.5007 - 0.6749i
-0.1234
可以验证,如:
b=[1 -2 1];
x=roots(b)
x =
1
1