Ｈn(x)=
到google " online differential equation of first order" 搜尋
進入
https://www.symbolab.com/solver/linear-first-order-differential-equation-calculator
\left(x-1\right)+\left(x-1\right)^2\cdot \left(-0.307\right)+\left(x-2\right)\left(x-1\right)^2\cdot \left(0.114\right)\:+\left(-0.0323\right)\left(x-2\right)^2\left(x-1\right)^2+\left(x-1\right)^2\left(x-2\right)^2\left(x-3\right)\left(0.0091\right)+\left(x-1\right)^2\left(x-2\right)^2\left(x-3\right)^2\left(-0.0091\right)+\left(x-1\right)^2\left(x-2\right)^2\left(x-3\right)^2\left(x-4\right)\left(0.0004\right)
計算結果為
0.0004x^7-0.0155x^6+0.1607x^5-0.7924x^4+2.2079x^3-3.7649x^2+4.3624x-2.1586
=0.0004x^7-0.0155x^6+0.1607x^5-0.7924x^4+2.2079x^3-3.7649x^2+4.3624x-2.1586
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