Among the basic arithmetic operations over finite fields, the computation of multiplicative inverse is the most time consuming operation.

在有限域的基本运算中，乘法逆元的计算是最费时间的运算。

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This includes normal and generalized inverse eigenvalue problem which includes the additive, multiplicative classical inverse eigenvalue problems as special cases.

包括常义特征值反问题和广义征值反问题，这类问题包括加法和乘法经典代数特征值反问题。

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Also, the multiplicative inverse is the reciprocal of any number, that is, multiplying the reciprocal of any number by the number itself will yield the multiplicative identity.

此外，乘法逆是互惠的任何数量，也就是乘以倒数任何数目的数量本身将产生倍增的身份。

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