English names of some symbols (rpm)

Original link: http://www.cnblogs.com/oldhorse/archive/2008/09/26/1299764.html

The basic mathematical operations;
compare, rate;
special operations, propositions, reasoning, geometry, set theory;
punctuation, symbols on the keyboard to see.

  + Plus plus; plus 
  - minus minus; minus 
  ± plus or minus sign 
  × is multiplied by multiplication 
  ÷ is divided by the division sign 
  = is equal to equal to the number 
  ≠ is not equal to not equal to the number 
  ≡ is equivalent is equal to the whole number 
  ≌ is equal to or approximately equal to equal to or approximately equal 
  ≈ is approximately equal to approximately equal number 

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  <Is less than is less than the number 
  > is more than the greater than 
  ≮ is not less than not less than the number 
  ≯ is not more than no greater than number 
  ≤ is less than or equal to less than or equal to the number 
  ≥ is more than or equal to greater than or equal to the number 
  % per cent per cent ... 
  ‰ per Mill thousandths ... 
  ∞ Infinity infinitely large 
  α varies as proportional and ... 

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  √ (square) root square root 
  ∵ since; because since 
  ∴ hence it 
  ∷ equals, as (proportion) is equal to, proportional 
  ∠ angle corner 
  ⌒ semicircle semicircular 
  ⊙ circle circle 
  ○ circumference circumferential 
  π pi pi 
  △ triangle triangle 

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  ⊥ perpendicular to perpendicular 
  ∪ union of and, collection 
  ∩ intersection of the cross, the through current 
  ∫ the integral of ... integral 
  Σ (sigma) summation of the sum 
  ° degree of 
  'minute minutes 
  "second second 
  ℃ Celsius system Celsius 

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  {Open brace, open curly brace 
  } close brace, close curly right brace 
  (open parenthesis, open paren parenthesis 
  ) close parenthesis, close paren right parenthesis 
  () brakets / parentheses brackets 
  [open bracket left bracket 
  ] close bracket right square bracket 
  [] square brackets square brackets 
  period, dot full stop, point. 
  | vertical Number of bar, vertical vertical Number of Virgule 

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  & Ampersand, and, reference, ref and references 
  * asterisk, multiply, star, pointer asterisk multiplication sign, stars, pointer 
  / slash, divide, oblique slash, slash, except number 
  // slash-slash, comment double slash, comment character 
  # pound pound 
  \ backslash The, sometimes 
  escape backslash escape, or may represent escape ULink 
  ~ tilde tilde 

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  . Full stop full stop 
  , comma comma 
  : colon colon 
  ; semicolon semicolon 
  ? Question mark question mark 
  ! Exclamation mark (British English) exclamation point (American English) 
  'Apostrophe Apostrophe 
  - hyphen hyphen 
  - dash dash 
  ... dots / ellipsis ellipsis 

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  "Single quotation marks single quotation marks 
  " "double quotation marks double quotes 
  ‖ parallel wire No. 
  & ampersand and = 
  ~ Dash swung tilde 
  § section; division section number 
  → arrow arrows; see Number

Reproduced in: https: //www.cnblogs.com/oldhorse/archive/2008/09/26/1299764.html

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Origin blog.csdn.net/weixin_30872337/article/details/94791041