设P是由一些复数组成的集合,其中包括0与1,如果P中任意两个数的和、差、积、商(除数不为0)仍是P中的数,则称P为一个数域。 常见数域: 复数域C;实数域R;有理数域Q。
... field of forces 力场 field of numbers 数域 field of rational functions 有理函数域 ...
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代数数域 [数] algebraic number field
普通数域筛选法 general number field sieve ; GNFS
复数域 complex field ; complex number field
在实数域内计算乘方 realpow
在实数域内计算平方根 realsqrt
函数域 [数] function field ; domain of function
代数函数域 [数] algebraic function field ; field of algebraic functions
实数域 [数] field of real numbers ; [数] real number field
系数域 [数] coefficient domain ; field of scalars ; [数] coefficient field
由此,把复数域上矩阵论的若干重要定理推广到了四元数体。
Accordingly, we extended several important theorems of complex matrix theory to the quaternion field.
算法数论:格点,数域,曲线和密码系统。
Algorithmic Number Theory: Lattices, Number Fields, Curves and Cryptography.
最后,把菲涅耳数推广到复数域,并用于研究截断高斯光束的衍射问题。
Finally we extend the Fresnel number to the region of complex number, and use it to investigate the diffraction problem of a truncated Gaussian beam.
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