RosettaCodeData/Task/Determine-if-a-string-is-numeric/Commodore-BASIC/determine-if-a-string-is-numeric.basic
2023-07-01 13:44:08 -04:00

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5 print chr$(147);chr$(14)
10 input "Enter a string";s$:gosub 1000:print
20 if r then print "You entered a number.":goto 99
30 print "That is not a number."
99 end
1000 t1=val(s$):t1$=str$(t1)
1010 r=t1$=s$ or t1$=" "+s$
1099 return