Determine if a string is numeric: Difference between revisions

m
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zzz=' - 000008.201e-00000000000000002 '
 
/*Note: some REXX interpretorsinterpreters allow use of tab chars as blanks. */
 
/*all statements below are equivalent.*/
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/*note: REXX only looks at the first char for DATATYPE's 2nd arg. */
 
/*note: some REXX interpretorsinterpreters don't support the ¬ (not) character.*/</lang>
 
=={{header|Ruby}}==
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