The word explanation of slide rule is: slide rule jü suà nchǐ. (1) A calculation tool based on logarithmic principle, which can perform operations such as multiplication, division, power, root, trigonometric function and logarithm. The pinyin is: jìsuànchǐ. The phonetic notation is: ㄐㄙㄨㄢㄔˇ. The structure is: counting (left and right structure) and calculating (upper and lower structure) feet (single structure).
What is the specific explanation of the slide rule? We will introduce you from the following aspects:
First, list and explain the details of this house viewing plan.
1. An auxiliary calculation tool based on logarithmic principle. It is suitable for multiplication, division, power, root, trigonometric function and logarithm. Also called a ruler.
Second, the national language dictionary
A tool for calculating the shape of a ruler. It has a sliding mechanism corresponding to the logarithmic scale of the main body. Using the moving comparison of scales, multiplication and division can be changed into addition and subtraction, which simplifies the steps of arithmetic operation. Before the appearance of small electronic computers, it was an extremely convenient tool.
Third, the network interpretation
Sliderule, or slide rule, is a kind of analog computer, which usually consists of three interlocking scale bars and a sliding window (called cursor). It was widely used before 1970, and was later replaced by electronic calculator, becoming an outdated technology.
Idioms about slide rule
Research, mental arithmetic, thoughtful counterattack, well written, well thought out and well calculated.
Words about slide rule
Settle accounts after autumn, transfer accounts, have a plan in mind, be far-sighted, have an iron abacus, be able to calculate, write, calculate, be smart, be smart, learn and do mental arithmetic.
On the Sentence Making of Slide Rule
Experienced readers may remember these, but like my slide rule, they are almost out of date.
2. Introduce the principle, structure and usage of the disc Gray code slide rule developed by the author.
3. The calculation formula of needle-punched nonwovens density, its conversion and the use of slide rule are introduced, which is convenient for producers to apply.
There are more than a dozen functional scales engraved on the slide rule, just like the embodiment of scientific mystery.
In the contemporary era when electronic calculators are used, the slide rule, as a special auxiliary tool of mathematics, is out of date.
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