Check a tuple (of strings) whether it represents numbers.
tuple_is_number checks each element of the input tuple T whether it represents a number. If the element is a number (real or integer), 1 is returned for that element. If the element is a string, it is checked whether the string represents a number. If so, 1 is returned, otherwise 0.
|
T (input_control) |
number(-array) -> real / integer / string |
| Input tuple. | |
|
IsNumber (output_control) |
integer(-array) -> integer |
| Tuple with boolean numbers. | |
tuple_is_number is reentrant and processed without parallelization.
Foundation
