Example

Long results

Negative numbers

Scientific notation (powers of 10)

Example

•Press to evaluate the expression you have in the edit line (where the blinking cursor is). An expression can contain numbers, functions, and variables.

Calculate

232

– 14

8

ln(45) :

-------------------

–3--------

 

 

 

 

23

14

8 3

45

If the result is too long to fit on the display line, or if you want to see an expression in textbook format, press

to highlight it and then press .

Type to start a negative number or to insert a negative sign.

To raise a negative number to a power, enclose it in parentheses. For example, (–5)2= 25, whereas –52= –25.

A number like 5 ⋅ 104 or 3.21 ⋅ 10–7is written in scientific notation, that is, in terms of powers of ten. This is simpler to work with than 50000 or 0.000000321. To enter numbers like these, use EEX. (This is easier than

using 10 .)

(4 ⋅ 10–13)(6 ⋅ 1023) Calculate ----------------------------------------------------

3 ⋅ 10–5

4 EEX

13

6 EEX

23 3 EEX 5

1-20

Getting started