数学符号n是什么意思
数学符号n是自然数集。
公式输入符号
≈≡≠=≤≥<>≮≯∷±+-×÷/∫∮∝∞∧∨∑∏∪∩∈∵∴⊥‖∠⌒⊙≌∽√
+: plus(positive正的)
-: minus(negative负的)
*: multiplied by
÷: divided by
=: be equal to
≈: be approximately equal to
(): round brackets(parenthess)
[]: square brackets
{}: braces
∵: because
∴: therefore
≤: less than or equal to
≥: greater than or equal to
∞: infinity
LOGnX: logx to the base n
xn: the nth power of x
f(x): the function of x
dx: diffrencial of x
x+y: x plus y
(a+b): bracket a plus b bracket closed
a=b: a equals b
a≠b: a isn't equal to b
a>b : a is greater than b
a>>b: a is much greater than b
a≥b: a is greater than or equal to b
x→∞: approches infinity
x2: x square
x3: x cube
√ ̄x: the square root of x
3√ ̄x: the cube root of x
3‰: three peimill
n∑i=1xi: the summation of x where x goes from 1to n
n∏i=1xi: the product of x sub i where igoes from 1to n
∫ab: integral betweens a and b
数学符号(理科符号)——运算符号
1.基本符号:+ - × ÷(/)
2.分数号:/
3.正负号:±
4.相似全等:∽ ≌
5.因为所以:∵ ∴
6.判断类:= ≠ < ≮(不小于) > ≯(不大于)
7.集合类:∈(属于) ∪(并集) ∩(交集)
8.求和符号:∑
9.n次方符号:¹(一次方) ²(平方) ³(立方) ⁴(4次方) ⁿ(n次方)
10.下角标:₁ ₂ ₃ ₄
(如:A₁B₂C₃D₄ 效果如何?)
11.或与非的"非":¬
12.导数符号(备注符号):′ 〃
13.度:° ℃
14.任意:∀
15.推出号:⇒
16.等价号:⇔
17.包含被包含:⊆ ⊇ ⊂ ⊃
18.导数:∫ ∬
19.箭头类:↗ ↙ ↖ ↘ ↑ ↓ ↔ ↕ ↑ ↓ → ←
20.绝对值:|
21.弧:⌒
22.圆:⊙ 11.或与非的"非":¬
12.导数符号(备注符号):′ 〃
13.度:° ℃
14.任意:∀
15.推出号:⇒
16.等价号:⇔
17.包含被包含:⊆ ⊇ ⊂ ⊃
18.导数:∫ ∬
19.箭头类:↗ ↙ ↖ ↘ ↑ ↓ ↔ ↕ ↑ ↓ → ←
20.绝对值:|
21.弧:⌒
22.圆:⊙
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