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This routine is only available on Doors CSE 8.0 and later for the color-screen TI-84 Plus C Silver Edition.


Reads a line from a program or AppVar. If Ans (line number) equals 0, then Theta will be overwritten with the number of lines in the program being read. Useful for editors, curiosities, and verification. Otherwise, Ans=1 is the first line of the program, Ans=2 is the second, and so on.

Technical Details


Str0: Name of program to read from
Ans: Line number to read from (first line is "1")


Str9: Contents of line read. Error "..NULLINE" if the line is empty. May also contain other error codes if conditions are wrong.