User Manual

32 Evaluating Expressions
Calculate 3.76 P (L7.9 +$ 5) + 2 log 45.
MathPrint™ Classic
3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ~ ¤
à 2 « 45 ¤ Í
Note: The ~ is a notable keystroke
difference as compared to Classic.
3 Ë 76 ¥ £ k 7 Ë 9 Ã y C 5 ¤
¤ Ã 2 « 45 ¤ Í
Multiple Entries on a Line
To enter two or more expressions or instructions on a line, separate them with colons
(ƒ m). All instructions are stored together in last entry (ENTRY).
Entering a Number in Scientific Notation
1. Enter the part of the number that precedes the exponent. This value can be an
expression.
2. Press y D. â is pasted to the cursor location.
3. Enter the exponent, which can be one or two digits.
Notes:
If the exponent is negative, press k, and then enter the exponent.
â stands for "x10" and the calculator interprets the entire number as (1.23.45 x 10
-
2
) as if it was entered with parentheses.
When you enter a number in scientific notation, the TI-84PlusCE does not
automatically display answers in scientific or engineering notation. The mode settings
and the size of the number determine the display format.
Functions
A function returns a value. For example, log( and sin( are functions. In general, the first
letter of each function is lowercase. Most functions take at least one argument, as
indicated by an open parenthesis following the name. For example, sin( requires one
argument, sin (value).
Note: To see the arguments of a function or command in the calculator, find the item
in a menu or y N and press +. For most menu items, a Catalog Help screen will
display and the syntax of the arguments will be displayed.