The reluctivity matrix is obtained by using the trigonometric function transformation and the form of coefficient matrix is simplified.
该方法适用于多项式描述磁化曲线非线性谐波电磁场问 解，并提高了计算精度。
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And more complex operations, like a trigonometric function, could take over a minute.
而更复杂的像三角函数之类的操，要超一分。
Polynomials could also be used to approximate logarithmic and trigonometric functions, which are a real hassle to calculate by hand.
多项式也以用于近似对数和三角函数这些函数手算相当麻烦。
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划词翻译
详细解释
多项式描述磁化曲线
非线性谐波电磁场问 
解，并提高了计算精度。
Crash Course
，
要超
一分
。
