伪数学是一种由非数学家所进行的类似数学之活动形式－－且数学家自己也会偶尔这么做。这个词是从伪科学一词、即适用于被声称是科学但其实并不是的观念转变而来的。
伪数学是一个喜欢数学的形式外学术界所进行的活动，有时自己的数学家。
Pseudomathematics is a form of mathematics-like activity undertaken outside academia, and occasionally by mathematicians themselves.
这一区别引领了数十年的数学和物理学领域的研究，包括1984年由西蒙·唐纳森发现的伪四维空间。
The dichotomy has led to decades of research in mathematics and physics, including the discovery of "fake" four-dimensional Spaces by Simon Donaldson in 1984.
定义了差分GPS（DGPS）的对流层伪距残差的概念，并建立了数学模型。 用计算机对DGPS的对流层伪距残差进行仿真。
Then, the troposphere pseudo-range remaining error (TDRE) of differential GPS (DGPS) is defined, its mathematical model is constructed, and the computer simulation of TDRE of DGPS is carried out.
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