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RosettaCodeData/Task/Determine-if-a-string-is-numeric/APL/determine-if-a-string-is-numeric.apl
Ingy döt Net 9246b988c7 i all the A langs
2013-04-10 14:16:51 -07:00

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⊃⎕VFI{w←⍵⋄((w='-')/w)←'¯'⋄w}'152 -3.1415926 Foo123'
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