What does a mean? What does A stand for?

This is in programming, to look from right to left, which means that the calculation result to the right of the equal sign is assigned to the variable to the left of the equal sign (the variable to the left of the medium sign in this problem is a), which can be split into two formulas:

a-=a+a;2. a+=(a-=a+a);The symbols += and -= seem to be designed to save memory or something, and the real meaning of the two formulas is:

1. a=a-(a+a);

2.a=a+ (the result of the first equation).

Since it is from right to left, it is necessary to calculate the equal sign at the end of the whole equation, that is, the first equation:

a=a-(a+a)

The result of the calculation is a=a, which means that the value of a to the right of the equal sign is assigned to the a to the left of the equal sign, so the result of the first formula is that the value of a remains unchanged and is still the original value of a;

Then calculate the second equation:

a=a+ (the result of the first equation).

Substituting the calculation result of the first formula, we get:

a=a+a, i.e. a=2a

This means that the value of a is changed, and its final value is twice its original value, i.e., if the original a = 3, after the calculation of the second equation, its value is changed to 6, and it is no longer 3.

Stands for adjective

Adjective common vocabulary.

English [.]'d kt v] United States ['ædʒɪktɪv]

n.Adjective.

adj.Adjectival; Not independent.

Used as a noun (n..))

there are more than 5,000 adjectives in that dictionary.

There are more than 5,000 adjectives in that dictionary.

Used as an adjective (adj..))

this is an adjective phrase.

It's an adjective phrase.

Overwork adjectives.

use adjectives.

Same synonyms ——

procedural unblocked vocabulary.

English [PR'si d r l] beauty [pr'siːdʒərəl]

adj.programmatic.

n.Police mystery works.

laws are sometimes referred to as substantive or procedural.

Sometimes the law is referred to as substantive or procedural.

Police Procedural Police Mystery Works.

procedure.

a stands for the first letter of the English alphabet.

It's in different areas.

It represents a different meaning.

If the test score is:

A, then it means that you have done well in the exam.

a, is an independent English word that includes measure words in itself, usually followed by nouns.

a" means "one", e.g. a tiger "a tiger"; A bus "a bus". It is possible that the letter A was created due to a bull-headed symbol, as in ancient Egyptian scripts and very early in Semitic writing, around 1500 BC in Sinai.

Usage of a: Generally speaking, a is used in front of a word that begins with a consonant, and an is used in front of a word that begins with a vowel; A (or an) is used in front of a countable noun, and a (or an) cannot be used in front of an uncountable noun, such as a healthy boy can be said but not a health.

In certain cases, a (or an) can be used in front of the plural: there are expressions such as a few (books), a greatest many (books), etc. in idioms. Precede a phrase that represents time or money, such as a further five minutes.

In front of a number of words that are plural in form and singular in meaning, e.g. a barracks, a links.

Mechanical drawing A-A is a symbol used to represent a cross-sectional drawing.

A-A, B-B, and C-C in the mechanical view are different sections, which refer to the view obtained by making an imaginary section at the position of the a, b, and c cutting lines and taking half of the one or two halves and projecting the remaining half of the fiber. Cut lines are customized in the mechanical drawing.

Cut line: A cut line is an engineering drawing term used in a section view to represent the size of the cut plane. The cut line is located between two cut bi symbols (the plot line used to represent the position of the cut plane, represented by a thick solid line), and the cut line is represented by a thin dotted line, in which the cut line is generally omitted and not drawn.

Slice annotation:

Draw thick and dashed lines at the beginning and end of the cutting plane (called the cutting position symbol); Draw a thin solid line with an arrow perpendicular to the stubby line on the outside of the stubby line to indicate the direction of observation; Write the name of the section plane (with a capital letter) next to the thick line, and write the corresponding name (such as a-a) directly above the corresponding section view.

a-=a means a=a-a, subtract a from a first, and then assign a value to the result. -= is actually an abbreviated form that makes changes to variables more concise.

When calculating, you can write it in a familiar form, and calculate it from right to left, noting that the value of the variable will change every time you calculate, and if you don't pay attention, it will lead to an error.

If someone else had written it for you, I think it would have been a high praise for you.