特殊符号
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-: 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.**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)10.下角标:₁ ₂ ₃ ₄ ⁿ(n次方) (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:≰ α β γ δ ε δ ε ζ η θ ι κ λ μ ν π ξ ζ η υ θ χ ψ ω Α Β Γ Γ Δ Ε Ζ Θ Η Κ ∧ Μ Ν Ξ Ο ∏ Ρ ∑ Τ Υ Φ Φ Χ Ψ а б в г д е ѐ ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я °;';″分别是度;分;秒。 1°=60';1'=60″ ;1°=3600″ 1481562256 本文来源:https://www.wddqw.com/doc/7ed9ce0f763231126edb111b.html