Commonly used numeric and physical symbols to be read

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The mathematical notation is read as follows:

1. alpha a: lf alpha angle; Coefficient; beta bet beta flux coefficient; Angle; Coefficient;

2. Gamma Ga:M Gamma conductivity coefficient (lowercase); delta delt change; Density; Diopter.

3. Epsilon epsilon epsilon The base number of logarithms; ETA EIT hysteresis coefficient; Efficiency (lowercase).

4. zeta zat truncation coefficient; Azimuth; Impedance; relative viscosity; Ordinal number of the original spike.

5. thet it West Tower temperature; phase angle of the trapped wheel; iot aiot Jota Tiny, a little.

Relationship symbols: 1. For example, "=" is an equal sign, " is an approximate sign (i.e., approximately equal to), "is an equal sign," > is greater than the sign, "is less than the sign," is greater than or equal to the sign (can also be written" "that is, not less than"), "is less than or equal to the sign (can also be written" "i.e., not greater than)," indicates the trend of variable change, " is a similar sign, " is a full equal sign, " is a parallel sign, " is a vertical sign.

2. " is a proportional symbol (the reciprocal relationship can be used when representing inverse proportionality), "is a symbol, Tong 晌" "is contained in the symbol," is a symbol included, "|means "divisible" (e.g. a|.)b means "a is divisible by b", and ||b means that r is the maximum power of a divisible by b), and any letter such as x, y, etc., can represent an unknown.

Which way to read the book of mathematical symbols.

Aryfa. Beta. Gamma) Delta).

Ep Prefecture is a yard of Silong).

Intercept Tower) Aita).

Sita) clear fiber.

Jota) Kappa).

Lambda) Miyu) New) can be tied).

Omicron) faction).

if) Sigma).

set) in English or Latin letters) fiji) hi).

Ppsi) Omega).

Mathematical symbols were invented and used later than numbers, but they outnumbered numbers. Among them, each symbol has its own reading, and the following is a list of commonly used mathematical symbols, I hope it will be helpful to you, for reference only.

1. Geometric symbols

2. Algebraic notation

3. Operator symbols

For example, the plus sign ( ), the minus sign ( ), the multiplication sign ( or ·), the division sign ( or ), the union ( ) intersection ( ) of two sets ( ) the root number ( ) logarithm (log, lg, ln), ratio ( :) differential (dx), integral ( ) curve integration ( ), etc.

4. Set symbols

5. Special symbols

pi).

6. Reasoning symbols

a|、⊥7. Quantity symbol

Such as: i, 2+i, a, x, natural logarithmic base e, pi.

8. Relationship symbols

For example, " is an equal sign, " is an approximate sign, "≠ is an equal sign, " is greater than a sign, " is a less than sign, " is greater than or equal to a sign (can also be written" is less than or equal to a sign (can also be written "".

9. Combine symbols

For example, parentheses in parentheses "()" curly braces "{} horizontal line "—".

10. Nature symbols

For example, the positive sign" and the negative sign "absolute value symbol" ||plus or minus " ".

11. Abbreviate symbols

Such as triangle ( ), right triangle (rt), sine (sin), cosine (cos), function of x (f(x)), limit (lim), angle ( ) because, (one foot stands, cannot stand).

So, (standing on two feet, can stand) sum ( ) multiplication ( ) take out of n elements at a time r elements all the different combinations (c(r)(n)), power (a, ac, aq, x n), etc.

12. Permutation and combination of symbols

c - Number of combinations.

a-Number of permutations.

n-The total number of elements.

r - the number of elements involved in the selection.

Factorial, such as 5! =5×4×3×2×1=120

c-combination.

a-arrangement.

13. Discrete mathematical symbols

Determinants (the formula is verifiable in l).

Satisfies (the formula is valid on e, and the formula is satisfiable on e).

The "non" operation of a proposition.

The "combination" ("and") operation of a proposition.

The "disjunctive" ("or", "can be combined or") operation of a proposition.

The "conditional" operation of a proposition.

a<=> proposition a is equivalent to b.

a=> the entailment relationship between proposition a and b.

a*The dual formula of Formula A.

WFF Composite Formula.

IFF if and only if.

The NAND operation of a proposition (the NAND gate).

The "or" operation of a proposition ("or-or").

Modal word "necessarily".

The modal word "may".

c Complex sets. n set of natural numbers (including 0).

n* set of positive natural numbers.

Set of p-primes. q set of rational numbers.

r set of real numbers. z integer set.