| + | 
      plus | 
    
    
      | - | 
      minus | 
    
    
      | × | 
      multiplied by | 
    
    
      | ÷ | 
      divided | 
    
    
      | ≠ | 
      not equal to | 
    
    
      | ± | 
      plus or minus | 
    
    
      | / | 
      over;divided by | 
    
    
      | = | 
      equals | 
    
    
      | ≈ | 
      approximatedly;similar | 
    
    
      | ≡ | 
      equivalent to; identical | 
    
    
      | > | 
      greateer than | 
    
    
      | < | 
      less than | 
    
    
      | >= | 
      greater than or equal to | 
    
    
      | <= | 
      less than or equal to | 
    
    
      | ⊁ | 
      not greater than | 
    
    
      | ⊀ | 
      not less than | 
    
    
      | » | 
      much greateer than | 
    
    
      | « | 
      much less than | 
    
    
      | ⊥ | 
      perpendicular to | 
    
    
      | ∣∣ | 
      parallel to | 
    
    
      | !== | 
      not equivalent to; not identical to | 
    
    
      | ≄≉ | 
      not similar to | 
    
    
      | ² | 
      squared | 
    
    
      | ³ | 
      cubed | 
    
    
      | 4 | 
      to the fourth; to the power four | 
    
    
      | n | 
      to the n; to the nth; to the power n | 
    
    
      | √ | 
      root; square root | 
    
    
      | ∛ | 
      cube root | 
    
    
      | ∜ | 
      fourth root | 
    
    
      | ! | 
      factorial | 
    
    
      | % | 
      percent | 
    
    
      | ∞ | 
      infinity | 
    
    
      | ∝ | 
      varies as; proportional to | 
    
    
      | -> | 
      gives,leads to, approaches | 
    
    
      | / | 
      per | 
    
    
      | # | 
        | 
    
    
      | @ | 
        | 
    
    
      | $ | 
        | 
    
    
      | ^ | 
        | 
    
    
      | & | 
        | 
    
    
      | * | 
      asterisk; star | 
    
    
      | () | 
      parentheses | 
    
    
      | ; | 
        | 
    
    
      | . | 
        | 
    
    
      | ’ | 
        | 
    
    
      | ” | 
        | 
    
    
      | [] | 
      brackets | 
    
    
      |   | 
        | 
    
    
      |   | 
        | 
    
    
      |   | 
        | 
    
    
      |   | 
        | 
    
    
      |   | 
        |