理解乘法和除法是互为逆运算；
由于公式不涉及矩阵乘法和求逆运算，因而计算量较小。
Since the formulas do not involve the multiplication and inverse of matrix, the calculations are reduced.
求逆是标量乘法中最耗时的运算，求逆运算次数的多少直接决定标量乘法的性能。
A field inversion is the most expensive operation on scalar multiplication, and the number of inversion determines the performance of scalar multiplication.
采用了一种可以避免求逆运算的修正BM迭代算法，并且利用这样的迭代算法和基于弱对偶基的比特并行乘法器构成了广泛应用的RS码的译码器。
By selecting the bit parallel multiplier based on WDB and the modified BM iterative algorithm that can avoid inversion, the widely used rs decoder is constructed.
采用了一种可以避免求逆运算的修正BM迭代算法，并且利用这样的迭代算法和基于弱对偶基的比特并行乘法器构成了广泛应用的RS码的译码器。
By selecting the bit parallel multiplier based on WDB and the modified BM iterative algorithm that can avoid inversion, the widely used rs decoder is constructed.
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