__The Radius-Sphere
Calculator__

__© 2010 by David-Alyy@TechForText.com
__**To contact the author use the
email address, or left click on these words, for a website communication
form.**

** **

__The Radius-Sphere Calculator,
calculates the volume and surface area of a sphere simultaneously, when the
length of the radius is entered. This calculator is presented Online in
the JavaScript format, below this paragraph. This calculator is also
available, without charge, in the Excel and OpenOffice formats by
downloading. For download links and additional information, scroll all the
way down beneath the Radius-Sphere Calculator.__

**If
you want to contact the creator of the Radius-Sphere Calculator ****leftclick on these words for a website communication
form.**

__Download links for the
__

__Radius-Sphere
Calculator in the__

__Excel and OpenOffice
Formats__

**If you
want an Excel version of the Radius-Sphere Calculator left click on these words.**

The website that provides the free
OpenOffice.org software package is located at **www.openoffice.org**. **You can
access this site by left clicking on these words.**

__Additional Information
on the__

__General
Instructions for the__

__Radius-Sphere
Calculator__

The radius sphere calculator is extremely simple to use, and instructions are probably not necessary, for most users. Just, delete the number in the input box on top of the calculator. The Excel and OpenOffice versions have a white input box, and the online versions have a pink input box. After deleting the number, enter your own number, and left click on the background with the mouse to obtain calculated results. For the online versions you can also press the calculation button, located on the top and bottom of the calculator. For the Excel and OpenOffice versions you can also press the enter key, or any of the arrow keys, to obtain calculated results.

__Utility
of the Excel and OpenOffice.org formats__

The __Radius-Sphere
Calculator__ in the
Excel and OpenOffice.org formats are generally more useful than the online
versions. This is because you can open a limitless number of calculation
documents, and save your calculations,* which you cannot do with the online
versions.

*****Note: To save your calculated
results, with Excel or OpenOffice, you must use a different filename for each
calculating document. In addition, you must use the save function in Excel
or OpenOffice, before closing your document. This can be done with the
function in the file menu, or by pressing the s key while holding down the Ctrl
key.

__Critical
Calculations__

The __Radius-Sphere
Calculator__ was designed for general use, study, homework, and demonstration
purposes. However, it were NOT designed for critical calculations, where a
mathematical error can lead to the loss of life, injury, property damage, or the
loss of large sums of money, such as with major engineering projects, and
nuclear power plants. If it is used for such purposes, all the
calculations must be checked by at least two other calculation devices.
The other calculation devices should be run on different operating systems, such
as Macintosh or Linux, and with computer processes made by different
manufacturers, such as Intel and AMD. The data should be entered by
different individuals. This is because, in rare cases, malfunctions in
software and/or hardware can result in mathematical errors, but the biggest and
most important risk factor is data entry errors.

Calculation devices can be constructed for critical calculations, to prevent
data entry errors, and to detect malfunctions in software or hardware, but I did
not provide these features in the __Radius-Sphere Calculator__.
However, even software designed with these special features, require
checking each calculation with another software package, on a different
operating system, for truly critical calculations. (If you need
calculation devices with such features, I can create them to meet your
needs. You can contact me at ** David-Alyy@TechForText.com**, or see the last section of this
webpage, for additional information.)

__Number Crunching
Ability Of The__

__Radius-Sphere
Calculator__

The __Radius-Sphere
Calculator__ in all three formats, online, Excel, and OpenOffice, can
calculate extraordinarily large or extremely small numbers, with over 300
digits. Numbers that have many digits are displayed in scientific
notation. The letter E is used to designate scientific notation. The
online version uses a lowercase __e__, and the Excel and OpenOffice versions
use an uppercase __E__. This format is illustrated in the following
examples.

__Examples
of the Display of Very Large Numbers__

__By
the ____Radius-Sphere
Calculator__

1000000000000000000000 is displayed as 1e+21. The 21, with a plus sign, (+) represents the number of decimal places after the first digit. This can be clarified by counting the 21 red highlighted digits in the following: 1000000000000000000000

1456789666666890000000 is displayed as 1.45678966666689e+21. The 21 represents the number of decimal places after the first digit. This can be seen by counting the digits highlighted in red as follows: 1456789666666890000000

__Examples
of How Very Small Numbers__

__Are
Displayed by the Radius-Sphere Calculator__

0.000000000000000000001 is displayed as 1e-21. With this example, 21 with the minus sign represent the number of decimal places after the decimal point, as indicated by the 21 digits highlighted in red as follows: 0.000000000000000000001

The number 0.0000000000000000000067987 is displayed as 6.7987e-21. Note the 21 with the minus sign (-) represent the number of decimal places after the decimal point. This becomes clear by counting the digits highlighted in red as follows: 0.0000000000000000000067987

__Astronomically Large Numbers, and
The__

__Radius-Sphere
Calculator__

When large numbers, with
approximately 306 digits or greater are calculated you will usually get an error
message, such as NaN,** **#NUM! or #VALUE!** ** If you enter a number much
smaller than the above, even 150 zeros, such as 1e+150 you will not obtain
a calculated results for volume because the calculated result will exceed the
limit of the calculator. However, you will get a result for surface
area.

__Infinitesimally Small Numbers and
the__

__Radius-Sphere
Calculator__

When calculated results are
infinitesimally small, (such as 1e-350) the calculator will round the number
down to **0** (zero).

__Entering
Very Large and Very Small Numbers, __

__Into the
Input Boxes,__

__Of the
Radius-Sphere Calculator__

The input boxes can hold numbers with over 300 digits. If you enter more than 21 digits the calculator will usually convert the number to scientific notation.

__This Website and the
____Radius-Sphere
Calculator__

__Was Designed and Built
by__

__David-Alyy@TechForText.com
__

I design and build user-friendly
software based calculation devices for __arithmetic__, __accounting__,
__currency exchange rates__,
__algebra__, __trigonometry__,
__correlations__, __calculus__, etc. I also create attractive online
calculation devices for websites. For a list of my websites with
calculation devices see www.TechForText.com/Math

I generally make these devices in the Microsoft Excel, OpenOffice.org, and the JavaScript formats, but I can work with other spreadsheet formats besides the above.

I can create new types of web communication forms for your website, such as the form on the top of this page. This can also include forms with built-in calculation devices.

I write instructions for the devices I build. I can also write instructions for software and computer devices created by others. In addition, I can write advertising for your websites, products and services.

For a detailed list of all the services I offer, see www.TechForText.com For a list of all my websites see www.David100.com

I can provide the services mentioned above on a fee-for-service basis, or possibly based on temporary or permanent employment. If you are interested in my services, and want additional contact information or more data on the services I offer, you can email me at David-Alyy@TechForText.com or use the website communication form, by left clicking on these words. T My resume is online at: www.David100.com/R

I am located in the USA. If you are a great distance from my locality or are in another country, this is not important. I can provide these services worldwide, because the software and websites I make can be delivered through the Internet to any locality, providing there are no governmental restrictions.