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eval(x [, n, /allnumber])
Compiles and evaluates a string, interpreting it as LUX code.
Non-strings are just evaluated. If n and/or keyword
/allnumber are specified, then numbers are read from
x. n indicates how many numbers to read from
x, and /allnumber indicates that all numbers are to
be read. The read numbers are returned in a scalar (if one number) or
array (if more than one number), and if no number is found then a zero
is returned for it.
See also: execute