`5 April 2006`

written in`MM/DD/YY`

format is`04/05/06`

and this date demonstrates counting.

`04/05/06`

also demonstrates increment-by-one: four incremented-by-one is five and five incremented-by-one is six.The

averageof`4`

and`6`

is`5`

.(4 + 6) 10 ------- = ---- = 5 2 2Thanks to SCC professor Dueck (and MarkP and KevinO and the Arizona Republic's Clay Thompson and MaryF) for the following time and date tidbit.

At two minutes and three seconds after 1:00 am and pm, the time and date were: 01:02:03 04/05/06I'm more use to using date and time rather than time and date.

At eight minutes and nine seconds after 7:00 am and pm, the date and time were: 04/05/06 07:08:09 What goes up must go down? At five minutes and four seconds after 6:00 am and pm, the date and time were: 04/05/06 06:05:04More off the wall arithmetic analysis with 04/05/06...

(1) summation(4, 6) = 5 (2) summation[4, 6] = 4 + 5 + 6 = 15 15 is a "multiple" of 5 (3) 4 + 6 = 10 5 is a "factor" of 10## Quickie About Interval Notation

Note: This BAB used the

`summation`

function to demonstrateinterval notation. Interval notation is used to represent a set of numbers.Assume we have a value and two numbers 'n' and 'm' where 'n' is less than 'm'. [n, m] n <= value <= m [n, m) n <= value < m (n, m] n < value <= m (n, m) n < value < m [] imply inclusive () imply exclusive

**Creator:** Gerald D. Thurman
[gthurman@gmail.com]

**Created:** 05 April 2006

This work is licensed under a Creative Commons License.