"Learning notes" LaTex mathematical symbols--Quick Search _latex

Basic operations

Multiplication Xxy
x \times y

Exponentiation 23x
2^{3X}

Square Root X+y−−−−−√
\sqrt {x + y}

Division X÷y
X \div y

Fractional XY
\frac{x}{y}

Different or ⊙
\oplus

Less than or equal to X≤y
X \leq y

Greater than or equal to X≥y
X \geq y

Not equal to X≠y.
X \neq y

Take the whole ⌊x⌋ down
\lfloor x \rfloor

Take the whole ⌈x⌉ down
\lceil x \rceil

Sum ∑x=1n7x
\sum\limits_{x = 1}^{n} 7x

Integral ∫π20sin (x)
\INT_{0}^{\FRAC{\PI}{2}} \sin (x) Collection symbol

Belong to A∈b
A \in B

does not belong to A∉b
A \notin B

Subset A⊂b
A \subet B Greek alphabet

Α\alpha

Β\beta

Θ\theta

Π\pi Vector Matrix

Vector V⃗
\VEC{V}

Matrix

(an1) = (a0b1) x (an−11)