Texas Instruments TI-83 Plus Manual Book page 37

To enter a formula, press
line, and then enter the formula.
Note
• If you do not precede a formula that contains a cell reference
• If a formula references a cell that is empty, ERROR or 0 is
If AutoCalc is turned
recalculated as you enter data into or edit data in the
spreadsheet.
Tip • The spreadsheet is not automatically recalculated upon
• You may want to
TI-83 Plus CellSheet™ Application
with an equal sign, the application interprets the column
reference as a variable, which usually results in an error.
displayed, depending on how the empty cell was used in the
formula.
on, the spreadsheet is automatically
opening the spreadsheet file. You must
the spreadsheet if it contains references to lists, matrices, or
variables that have changed.
turn off the autocalc feature
spreadsheet is large. Large spreadsheets can take a minute
or more to recalculate.
to place an equal sign on the edit
manually recalculate
if your
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