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| operator | plus | ||||
| Summary | Numeric The total. | 
numeric-expression (+ | plus) numeric-expression
This is OmniMark's addition operator. Either the keyword plus or the punctuational operator + can be used, though + is the preferred form. 
Usage example:
43 + 967 12 + 19 + -35 a + b + c + d ;each letter being a counter variable a plus b plus c plus d ;each letter being a counter variable
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