TI-83 Plus Operating the TI-83 Plus Silver Edition 49
Note: An open parenthesis following a list name, matrix name, or Y= function
name does not indicate implied multiplication. It specifies elements in the list
(Chapter 11) or matrix (Chapter 10) and specifies a value for which to solve the
Y= function.
Negation
To enter a negative number, use the negation key. Press Ì and then
enter the number. On the TI-83 Plus, negation is in the third level in the
EOS hierarchy. Functions in the first level, such as squaring, are
evaluated before negation.
For example, MX2, evaluates to a negative number (or 0). Use
parentheses to square a negative number.
Note: Use the ¹ key for subtraction and the Ì key for negation. If you press ¹
to enter a negative number, as in 9 ¯ ¹ 7, or if you press Ì to indicate
subtraction, as in 9 Ì 7, an error occurs. If you press ƒ A Ì ƒ B, it is
interpreted as implied multiplication (AäMB).