Sending text variables to the calculator
1. Create the text in some application.
2. Use the standard Windows commands to copy the data to the clipboard. Even if the program
Copy command does not explicitly mention the clipboard, the application most likely places a
copy in the clipboard.
3. In GraphLink, choose File, New, and select the Data File type.
4. Use Edit, Paste to paste your text into the new text variable window.
5. Change the variable name from 'untitled' to your desired name.
6. Choose File, Save As, and save the text variable as a .9xt file.
7. Finally, select Link, Send, choose the text variable, select Add, then OK. The text variable will
be sent to the calculator.
About all you can do with this text variable is view it in the text editor.
Sending matrix variables to the calculator
Note that this tip does not work with GraphLink 2.1. TI has unfortunately removed the Tools, Import,
ASCII Data menu item. It is no longer possible to send a matrix variable to the calculator. Hopefully TI
will restore this feature in the future.
The basic principle is to convert the matrix data to a text file, then use GraphLink to import the file. The
steps are:
1. Create a text file (.txt) that contains your data. The individual elements can be separated by
spaces, commas, semicolons or tabs. From a spreadsheet, you can select the data range,
then choose File, Save As, and select the text file type. The actual procedure depends on
which spreadsheet you are using. It the PC application does not support saving data as a text
file, you can copy the data to the clipboard, then paste it into a text editor such as NotePad.
2. In GraphLink, select Tools, Import, ASCII data. Choose the .txt file and select OK.
3. GraphLink shows a Save As dialog box. Save the file as a .9xm file, with a name that you
choose.
4. GraphLink opens a new data window showing the matrix. If it looks correct, you can send the
matrix to the calculator with Link, Send.
The GraphLink Import function is smart enough to recognize that the E character means exponential
notation. If the text file data rows don't have the same number of elements, the matrix is created by
padding the short rows with '0' elements.
If you are sending variables to use the linear regression functions or other statistics functions, use
NewData to convert the matrix to a data variable.
Creating a matrix variable program with a spreadsheet
If you have a PC spreadsheet program such ast Excel or Lotus 123, it can be used to create an ASCII
text program which will create the matrix on the calculator. The data to be sent is arranged in the
spreadsheet columns, and another column contains text strings and spreadsheet formulas which
create the calculator matrix elements from the data in the spreadsheet cells.
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