Let's take a look at some different types of numbers that you can use in your program code.

First, here are some integers.

*An integer. Integers are numbers with no decimal components.
An integer in octal format. This number is 35, or (4 *
8) + 3, in base 10.
An integer in hexadecimal format. This number is also 35, or (2
* 16) + 3 in base 10.*

123 043 0x23

Now, some numbers and fractions-also *called floating point
values*. You will frequently see these values referred to as
a *float value* for simplicity's sake.

*A float with a value in the tenths place. You can also say
100 and 5/10. A float with a fraction value out to the thousandths place.
You can also say 54 and 534/1000.*

100.5 54.534

Here's a very small number.

*A very small float value. You can represent this value in scientific
notation as 3.4E-5.*

.000034

dave@cs.cf.ac.uk