English translation and abbreviation of one thing in a lifetime

English translation and abbreviation of one thing in a lifetime

one life,one thing

On the rules of English abbreviations
Generally, a e i o u y is omitted. For example, China is abbreviated as CHN, but
If the beginning and end of a word are "aeiou", how can the abbreviation be correct?
If it's multiple word abbreviations, can we use initials regardless of vowels and consonants?
Like EA, FBI, wow and so on?

Question 1: if the beginning and end of a word are "aeiou", how can the abbreviation be correct?
It's got to be initialed anyway. It's not said
For example, the Olympic Games requires each country to have an abbreviation, and each state in the United States has a two letter code. NBA usually takes the first three letters of the city name, for example, Chicago Bulls, Chicago Bulls, Charlotte Bobcats, Charlotte Bobcats and cha
Question 2: if there are multiple word abbreviations, can they be initialed regardless of vowels and consonants, such as ea, FBI, wow and so on?
Yes, but the people who name them have certain choices. Prepositions such as of, for, and the can be ignored. But it's OK to keep them for the sake of abbreviations. It doesn't matter if you choose one more letter for each word
What's more, acronym is called acronym, and abbreviation is called abbreviation

With the help of calculator or computer, the approximate value of equation x ^ 3 + 5 = 6x ^ 2 + 3x can be obtained by dichotomy (detailed process)

This is a problem of numerical solution of equation. It is not easy to solve cubic equation, but sometimes only its numerical solution is required to meet the actual requirements. First, the equation is changed into a standard form, x ^ 3-6x ^ 2-3x + 5 = 0, a variable unit is set in Excel, such as A1, and then the equation is put into another unit, where x is replaced by A1