Even the earliest of tribes had a system of numeration that, if not advanced, was sufficient for the tasks that they had to perform.

即使是最早的部落也有一种计算系统，哪怕不先进，也足以完成他们必须执行的任务。

youdao

From earliest childhood, we are so bound up with our system of numeration that it is a feat of imagination to consider the problems faced by early humans, who had not yet developed this facility.

从幼年初期时起，我们就与我们的计数系统紧密联系在一起，以至于考虑未开发计数能力的早期人类所面临的那些问题，就已经成为了想象力上的一次壮举。

youdao

We first extend the concept of ordinary number system, and study the complex number numeration. Then we give an example of fractal by the complex number numeration.

此文把通常进位制的概念扩张成复数进位，且由复数进位给出了一类纯粹由数学定义引出的分形。

youdao