mathematics求解方程组
四元四次方程组怎么写程序，求举个例子solve[a+298.05*b+(298.05^2)*d+(298.05^3)*d==0.529213,a+b*303.05+c*3...
四元四次方程组怎么写程序，求举个例子
solve[a + 298.05*b + (298.05^2)*d + (298.05^3)*d == 0.529213,
a + b*303.05 + c*303.05^2 + d*303.05^3 == 0.526236,
a + b*307.95 + c*307.95^2 + d*307.95^3 == 0.522834,
a + b*312.93 + c*312.93^2 + d*312.93^3 == 0.519023, a, b, c, d]
这么写为什么算不出来？ 展开
solve[a + 298.05*b + (298.05^2)*d + (298.05^3)*d == 0.529213,
a + b*303.05 + c*303.05^2 + d*303.05^3 == 0.526236,
a + b*307.95 + c*307.95^2 + d*307.95^3 == 0.522834,
a + b*312.93 + c*312.93^2 + d*312.93^3 == 0.519023, a, b, c, d]
这么写为什么算不出来？ 展开
1个回答
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Solve[{a + 298.05*
b + (298.05^2)*d + (298.05^3)*d == 0.529213, a +
b*303.05 + c*303.05^2 + d*303.05^3 ==
0.526236, a + b*307.95 + c*307.95^2 + d*307.95^3 ==
0.522834, a + b*312.93 + c*312.93^2 + d*312.93^3 ==
0.519023}, {a, b, c, d}]
b + (298.05^2)*d + (298.05^3)*d == 0.529213, a +
b*303.05 + c*303.05^2 + d*303.05^3 ==
0.526236, a + b*307.95 + c*307.95^2 + d*307.95^3 ==
0.522834, a + b*312.93 + c*312.93^2 + d*312.93^3 ==
0.519023}, {a, b, c, d}]
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