论文部分内容阅读
本文的目的在於指出P.A.卡尔寧著,赵根榕,張理京譯,代数学教程下册221頁,用对数計算尺的平方标作乘除运算时的空位法則是不方便的,而且容易產生計算上的錯誤。同时在本文中还提出了修改这个法則的意見,为了易於說明本文起見,現在將在代數学教程中能够讀得到的利用对數計算尺作乘除运算時的定位方法,略去其理由,配合了必需的知識,簡單扼要地概括如下: 主尺标A与A_1上的數字是代表函數y=log x的自变量的值,与自变量x相对应的函數值用自1開始至自变量x的長度來代表。平方尺标B与B_1是由兩段長度相等而先後刻度完全一样的尺标组成,每一段是將主尺标縮小1/2制成,我們分別地把它們叫做左段尺与右段尺,其範圍是:
The purpose of this paper is to point out that P.A. Karin, Zhao Genxuan, and Zhang Lijing have translated, and the algebraic tutorial is 221 pages. Using the logarithm square of the logarithm scale as the vacancy rule for multiplication and division is inconvenient, and it is prone to computational errors. At the same time, this article also proposes to amend this law. For ease of explanation, we will now be able to use the logarithmic ruler for the multiplication and division in the algebra, and ignore the reason. The necessary knowledge is briefly summarized as follows: The numbers on the main scales A and A_1 are the values of the independent variables representing the function y=log x, and the values of the functions corresponding to the independent variables x are from 1 to the independent variable x. The length to represent. The square ruler B and B_1 are composed of two equal length scales, each of which is made by reducing the main ruler by 1/2. We call them the left ruler and the right ruler, respectively. Its scope is: