请帮助用matlab算一下三个方程的全部根,谢谢。
537265*x^6-7752905*x+7215640=0537265*x^6-6879917*x+6342652=0537265*x^6-6195671*x+5658...
537265*x^6-7752905*x+7215640=0
537265*x^6-6879917*x+6342652=0
537265*x^6-6195671*x+5658406=0 展开
537265*x^6-6879917*x+6342652=0
537265*x^6-6195671*x+5658406=0 展开
4个回答
展开全部
>> solve('537265*x^6-7752905*x+7215640')
ans =
1
1.3497726220482116106684727004099
.35220010853561195310954409836896+1.6808152466318979498437178037529*i
-1.5270864195597177584437804485739+1.0207061386909649607144235737085*i
-1.5270864195597177584437804485739-1.0207061386909649607144235737085*i
.35220010853561195310954409836896-1.6808152466318979498437178037529*i
>> solve('537265*x^6-6879917*x+6342652')
ans =
1
1.3015540988570832907928627154016
.34191868587407569331776342706880+1.6425880744232019243424057209779*i
-1.4926957353026173387141947847696+.99698289846365520485638937648324*i
-1.4926957353026173387141947847696-.99698289846365520485638937648324*i
.34191868587407569331776342706880-1.6425880744232019243424057209779*i
>> solve('537265*x^6-6195671*x+5658406')
ans =
1
1.2595713805425294254928426360399
.33327825914455059841511023452479+1.6096959609366152177186923220398*i
-1.4630639494158153111615315525448+.97661121373035609871500972708320*i
-1.4630639494158153111615315525448-.97661121373035609871500972708320*i
.33327825914455059841511023452479-1.6096959609366152177186923220398*i
ans =
1
1.3497726220482116106684727004099
.35220010853561195310954409836896+1.6808152466318979498437178037529*i
-1.5270864195597177584437804485739+1.0207061386909649607144235737085*i
-1.5270864195597177584437804485739-1.0207061386909649607144235737085*i
.35220010853561195310954409836896-1.6808152466318979498437178037529*i
>> solve('537265*x^6-6879917*x+6342652')
ans =
1
1.3015540988570832907928627154016
.34191868587407569331776342706880+1.6425880744232019243424057209779*i
-1.4926957353026173387141947847696+.99698289846365520485638937648324*i
-1.4926957353026173387141947847696-.99698289846365520485638937648324*i
.34191868587407569331776342706880-1.6425880744232019243424057209779*i
>> solve('537265*x^6-6195671*x+5658406')
ans =
1
1.2595713805425294254928426360399
.33327825914455059841511023452479+1.6096959609366152177186923220398*i
-1.4630639494158153111615315525448+.97661121373035609871500972708320*i
-1.4630639494158153111615315525448-.97661121373035609871500972708320*i
.33327825914455059841511023452479-1.6096959609366152177186923220398*i
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x=solve(537265*x^6-7752905*x+7215640)
x =
1
1.3497726220482116106684727004099
.35220010853561195310954409836896+1.6808152466318979498437178037529*i
-1.5270864195597177584437804485739+1.0207061386909649607144235737085*i
-1.5270864195597177584437804485739-1.0207061386909649607144235737085*i
.35220010853561195310954409836896-1.6808152466318979498437178037529*i
x=solve(537265*x^6-6879917*x+6342652)
x=
1
1.3015540988570832907928627154016
.34191868587407569331776342706880+1.6425880744232019243424057209779*i
-1.4926957353026173387141947847696+.99698289846365520485638937648324*i
-1.4926957353026173387141947847696-.99698289846365520485638937648324*i
.34191868587407569331776342706880-1.6425880744232019243424057209779*i
x=solve(537265*x^6-6195671*x+5658406)
x=
1
1.2595713805425294254928426360399
.33327825914455059841511023452479+1.6096959609366152177186923220398*i
-1.4630639494158153111615315525448+.97661121373035609871500972708320*i
-1.4630639494158153111615315525448-.97661121373035609871500972708320*i
.33327825914455059841511023452479-1.6096959609366152177186923220398*i
x =
1
1.3497726220482116106684727004099
.35220010853561195310954409836896+1.6808152466318979498437178037529*i
-1.5270864195597177584437804485739+1.0207061386909649607144235737085*i
-1.5270864195597177584437804485739-1.0207061386909649607144235737085*i
.35220010853561195310954409836896-1.6808152466318979498437178037529*i
x=solve(537265*x^6-6879917*x+6342652)
x=
1
1.3015540988570832907928627154016
.34191868587407569331776342706880+1.6425880744232019243424057209779*i
-1.4926957353026173387141947847696+.99698289846365520485638937648324*i
-1.4926957353026173387141947847696-.99698289846365520485638937648324*i
.34191868587407569331776342706880-1.6425880744232019243424057209779*i
x=solve(537265*x^6-6195671*x+5658406)
x=
1
1.2595713805425294254928426360399
.33327825914455059841511023452479+1.6096959609366152177186923220398*i
-1.4630639494158153111615315525448+.97661121373035609871500972708320*i
-1.4630639494158153111615315525448-.97661121373035609871500972708320*i
.33327825914455059841511023452479-1.6096959609366152177186923220398*i
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代码:
clc;clear;
p1 = [537265,0,0,0,0,-7752905,7215640];
p2 = [537265,0,0,0,0,-6879917,6342652];
p3 = [537265,0,0,0,0,-6195671,5658406];
x1 = roots(p1);
x2 = roots(p2);
x3 = roots(p3);
x1
x2
x3
结果:
x1 =
-1.5271 + 1.0207i
-1.5271 - 1.0207i
0.3522 + 1.6808i
0.3522 - 1.6808i
1.3498 + 0.0000i
1.0000 + 0.0000i
x2 =
-1.4927 + 0.9970i
-1.4927 - 0.9970i
0.3419 + 1.6426i
0.3419 - 1.6426i
1.3016 + 0.0000i
1.0000 + 0.0000i
x3 =
-1.4631 + 0.9766i
-1.4631 - 0.9766i
0.3333 + 1.6097i
0.3333 - 1.6097i
1.2596 + 0.0000i
1.0000 + 0.0000i
clc;clear;
p1 = [537265,0,0,0,0,-7752905,7215640];
p2 = [537265,0,0,0,0,-6879917,6342652];
p3 = [537265,0,0,0,0,-6195671,5658406];
x1 = roots(p1);
x2 = roots(p2);
x3 = roots(p3);
x1
x2
x3
结果:
x1 =
-1.5271 + 1.0207i
-1.5271 - 1.0207i
0.3522 + 1.6808i
0.3522 - 1.6808i
1.3498 + 0.0000i
1.0000 + 0.0000i
x2 =
-1.4927 + 0.9970i
-1.4927 - 0.9970i
0.3419 + 1.6426i
0.3419 - 1.6426i
1.3016 + 0.0000i
1.0000 + 0.0000i
x3 =
-1.4631 + 0.9766i
-1.4631 - 0.9766i
0.3333 + 1.6097i
0.3333 - 1.6097i
1.2596 + 0.0000i
1.0000 + 0.0000i
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syms x
x=solve('537265*x^6-7752905*x+7215640=0','537265*x^6-6879917*x+6342652=0','537265*x^6-6195671*x+5658406=0')
好像只有一个根
x=solve('537265*x^6-7752905*x+7215640=0','537265*x^6-6879917*x+6342652=0','537265*x^6-6195671*x+5658406=0')
好像只有一个根
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