-` -> ≈ almost equal to\r
-~ -> ≈ almost equal to\r
-= -> ↔ left right arrow\r
-+ -> ⇔ left right double arrow\r
-, -> ≤ less-than or equal to\r
-< -> ≤ less-than or equal to\r
-. -> ≥ greater-than or equal to\r
-> -> ≥ greater-than or equal to\r
-- -> ± plus-minus sign\r
-_ -> ± plus-minus sign\r
-\ -> ⁞ vertical four dots\r
-| -> ⁞ vertical four dots\r
-(space) -> ⁿ superscript n\r
+` (grave accent) -> ≈ almost equal to\r
+~ (tilde) -> ≈ almost equal to\r
+= (equals sign) -> ↔ left right arrow\r
++ (plus) -> ⇔ left right double arrow\r
+, (comma) -> ≤ less-than or equal to\r
+< (less than) -> ≤ less-than or equal to\r
+. (dot) -> ≥ greater-than or equal to\r
+> (greater than) -> ≥ greater-than or equal to\r
+- (hyphen) -> ± plus-minus sign\r
+_ (underscore) -> ± plus-minus sign\r
+\ (backslash) -> ⁞ vertical four dots\r
+| (vertical slash) -> ⁞ vertical four dots\r
+(space) -> ⁿ superscript n\r