markdown mathematical symbols

Directory title

    • Example
      • approximately equal to
      • inequality sign
      • Less than or equal to, greater than or equal to Not equal to
      • Multiplication sign
      • Click and multiply
      • division sign
      • plus or minus sign
      • endless
      • Sum
      • tiring
      • Greek alphabet
      • arrow
      • Integral, double integral, curve integral
      • Trigonometric functions
      • gradient
      • Because Therefore
      • arbitrariness and existence
      • Belong and not belong
      • subset, proper subset, empty set
      • Intersection and union
      • Logical OR and Logical AND
      • expected value
      • average value
      • Ellipsis
      • brackets
        • Parentheses
        • big parantheses
      • Fraction
      • Prescribe a prescription
      • vector
      • limit
      • Derivative
      • equation set
      • matrix
      • Logarithmic notation
      • vertical line
      • round
      • Kronecker product
      • XOR
    • code

Example

The code is attached at the end

Approximately equal to

\approx

unequal sign

=?

?

\\
ot=\ \\
ot

=

Less than or equal to, greater than or equal to, not equal to

\leq

\geq

\\
eq

=

Multiplication sign

×

\times

×

Click multiplication

?

\cdot\

?

Division sign

÷

\div

÷

Positive and negative signs

±

\pm

±

Infinity

\infty

Sum

\sum

Cumulative multiplication

\prod

Greek letters

α

β

γ

π

\alpha\ \beta\ \gamma\ \pi

αβγπ

Arrow

\leftarrow\ \rightarrow

←→

Integral, double integral, curve integral

\int

?

\iint

?

\oint

2

a

x

+

1

d

x

\int_2^{a}x + 1dx

∫2a?x + 1dx

Trigonometric functions

3

0

°

sin

?

cos

?

tan

?

\bot\ \angle\ 30^\circ\ \sin\ \cos\ \tan\

⊥∠30°sincostan

Gradient

?

\\
abla

?

Because, so

\because

\therefore

Arbitrary and existence

?

\forall

? and

?

\exists

?

Belongs and does not belong

\in

∈ and

?

\\
otin

∈/

Subset, proper subset, empty set

?

\subset

?,

?

\subseteq

?,

?

\emptyset

?

Intersection and union

?

\bigcap

? and

?

\bigcup

?

Logical OR and Logical AND

?

\bigvee

? and

?

\bigwedge

?

Expected value

y

^

\hat{y}

y^?

Average

a

+

b

+

c

+

d

\overline{a + b + c + d}

a + b + c + d?

Ellipsis

2

2

2\dots2

2…2

2

2

2\ldots2

2…2

2

?

2

2\cdots2

2?2

2

?

2

2\vdots2

2?2

2

?

2

2\ddots2

2?2

Brackets

Parentheses

f

(

s

)

f(s)

f(s)

Braces

y

{

1

,

2

,

3

}

y\in\{1,2,3\}

y∈{1,2,3}

####brackets

(

1

2

)

(\sqrt {1 \over 2})

(twenty one?
?)

(

1

2

)

\left(\sqrt {1\over2}\right)

(twenty one?
?)

Score

1

?

x

2

?

x

\frac{1-x}{2-x}

2?x1?x?

x

x

?

1

x\over{x-1}

x?1x?

Prescription

9

\sqrt{9}

9
?

9

3

\sqrt[3]{9}

39
?

Vector

x

?

\vec{x}

x

Extreme

lim

?

x

+

1

?

x

2

?

x

\lim_{x\rightarrow + \infty}\frac{1-x}{2-x}

x→ + ∞lim?2?x1?x?

Derivation

y

=

n

×

s

n

?

1

y \prime=n×s{n-1}

y′=n×sn?1

System of equations

{

x

+

1

=

2

x

?

y

=

0

\begin{cases} x + 1=2\ x-y=0 \end{cases}

{x + 1=2x?y=0?

Matrix

1

2

3

4

5

6

1

2

3

\begin{matrix} 1 & amp;2 & amp;3\ 4 & amp;5 & amp;6\ 1 & amp;2 & amp;3\ \end{matrix }

141?252?363?

A

=

[

1

2

3

4

5

6

1

2

3

]

A=\left[\begin{matrix} 1 & amp;2 & amp;3\ 4 & amp;5 & amp;6\ 1 & amp;2 & amp;3\\ \ \end{matrix}\right]

A=
?141?252?363?
?

Logarithmic notation

log

?

lg

?

ln

?

\log\ \lg\ \ln

loglgln

Vertical line

\mid

Circle

°

\circ

°

Kronecke product

?

\bigotimes

?

XOR

?

\bigoplus

?

Code

### is approximately equal to
$\approx$

### inequality sign

$$
\\
ot=\
\\
ot
$$

### Less than or equal to, greater than or equal to, not equal to

$\leq$ $\geq$ $\\
eq$

### Multiplication sign

$$
\times
$$

### Click Multiply

$$
\cdot\
$$

### Division sign

$$
\div
$$

### Positive and negative sign

$\pm$

### Infinite

$\infty$

### Sum

$$
\sum
$$

### Multiplication

$$
\prod
$$

### Greek alphabet

$$
\alpha\
\beta\
\gamma\
\pi
$$





### Arrow

$$
\leftarrow\
\rightarrow
$$



### Integral, double integral, curve integral
$\int$ $\iint$ $\oint$
$$
\int_2^{<!-- -->a}x + 1dx
$$

### Trigonometric functions

$$
\bot\
\angle\
30^\circ\
\sin\
\cos\
\tan\
$$



### Gradient
$\\
abla$

### Because Therefore
$\because$ $\therefore$
### Arbitrary and existence
$\forall$ and $\exists$

### Belong and not belong
$\in$ and $\\
otin$


### Subset, proper subset, empty set
$\subset$, $\subseteq$, $\emptyset$


### Intersection and Union
$\bigcap$ and $\bigcup$

### Logical OR and Logical AND
$\bigvee$ and $\bigwedge$

### Expected value
$\hat{<!-- -->y}$


### Average
$\overline{<!-- -->a + b + c + d}$

### Ellipses
![Insert image description here](https://img-blog.csdnimg.cn/e62ddc3331fd4e51ad1b3faf971a9a3a.png)
$2\dots2$
$2\ldots2$
$2\cdots2$
$2\vdots2$
$2\ddots2$

### Brackets
#### Parentheses
$f(s)$

#### big parantheses
$y\in\{<!-- -->1,2,3\}$

####Brackets

$(\sqrt {<!-- -->1 \over 2})$
$\left(\sqrt {<!-- -->1\over2}\right)$

### Fraction

$\frac{<!-- -->1-x}{<!-- -->2-x}$
$$
x\over{<!-- -->x-1}
$$

### Prescription

$$
\sqrt{<!-- -->9}
$$

$$
\sqrt[3]{<!-- -->9}
$$

### Vector

$$
\vec{<!-- -->x}
$$

### Limit

$$
\lim_{<!-- -->x\rightarrow + \infty}\frac{<!-- -->1-x}{<!-- -->2-x}
$$

### Seeking derivation

$$
y \prime=n×s{<!-- -->n-1}
$$

### equation set

$$
\begin{<!-- -->cases}
x + 1=2\
x-y=0
\end{<!-- -->cases}
$$

### Matrix

$$
\begin{<!-- -->matrix}
1 & amp;2 & amp;3\
4 &5&6\
1 & amp;2 & amp;3\
\end{<!-- -->matrix}
$$

$$
A=\left[\begin{<!-- -->matrix}
1 & amp;2 & amp;3\
4 &5&6\
1 & amp;2 & amp;3\
\end{<!-- -->matrix}\right]
$$

### Logarithmic notation

$$
\log\
\lg\
\ln
$$

### Vertical line

$\mid$

### round

$\circ$

### Kronecker product

$\bigotimes$

### XOR

$\bigoplus$