1728 Software Systems

1728 = 123
 First, why the number 1728 ? Well, it is twelve cubed (meaning 12 x 12 x 12 ) and why not a perfect cube for a math website? Some other interesting properties of 1728: 33 x 43 = 1728 23 x 63 = 1728 63 + 83 + 103 = 1728 242 + 242 + 242 = 1728 Also the first 5 prime numbers are 2, 3, 5, 7, and 11. 2 + 3 + 5 + 7 = 17 2 + 3 + 5 + 7 + 11 = 28 Pretty neat huh ?

At first, our site consisted of 10 "non-interactive" pages which would get very few hits. Adding interactive calculators, increased traffic dramatically !!!

Site History

The 2 Unknown Calculator was written in Mid-December 1998.

12/17/98 - 3 Unknown Calculator

12/19/98 - 4 Unknown Calculator

1/1/99 - U L T R A C O N V E R T E R

1/8/99 - Quadratic Equation Calculator

1/18/99 - Cubic Equation Calculator

1/30/99 - Pythagorean Theorem Calculator

2/7/99 - CIRCLE AND SPHERE CALCULATOR

4/24/99 - MONTHLY LOAN PAYMENT CALCULATOR

5/1/99 - COMPOUND INTEREST CALCULATOR

5/15/99 - TEMPERATURE CONVERTER

6/25/99 - RESISTORS IN PARALLEL CALCULATOR

6/30/99 - BOYLE'S LAW CALCULATOR

7/1/99 - CHARLES' LAW CALCULATOR

7/4/99 - COMBINED GAS LAW CALCULATOR

7/11/99 - VECTOR ADDITION CALCULATOR

7/18/99 - INTEREST RATE ULTRA CONVERTER

7/20/99 - ANNUITY CALCULATOR

8/1/99 - STP & MOLAR VOLUME CALCULATOR

8/20/99 - DIGITALLY CORRECT GAME

8/25/99 - ANGLE/TIME/VIDEO FRAME CALCULATOR

10/25/99 - U L T R A C O N V E R T E R 2

12/13/99 - MAGNITUDE CALCULATOR

12/15/99 - FREQUENCY & WAVELENGTH CALCULATOR

12/18/99 - KEPLER's 3rd LAW CALCULATOR

12/26/99 - GRAVITATIONAL FORCE CALCULATOR

1/8/2000 - PERPETUAL CALENDAR/JULIAN DATE CALCULATOR

3/4/2000 - TIME CARD (PUNCH CLOCK) CALCULATOR

3/18/2000 -RIGHT TRIANGLE CALCULATOR

3/26/2000 -ULTIMATE TRIANGLE CALCULATOR

3/31/2000 -ANGLE CONVERTER

4/9/2000 -NON-METRIC "ADDING MACHINE

6/25/2000 -HALF-LIFE CALCULATOR

7/4/2000 - VIRTUAL LOTTERY

9/4/2000 - ULTIMATE ELLIPSE CALCULATOR

11/4/2000 - RADIOACTIVE DECAY CALCULATOR

12/8/2000 - RELATIVITY CALCULATOR

12/31/2000 - CURRENCY ULTRA CONVERTER (for 180 Currencies)

-------This site will ALWAYS be 100 % free.-------

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We are striving to make this a "no-frills" web-site. Therefore, this website will have NO FRAMES, NO FANCY GRAPHICS, NO SOUNDS, or anything else that takes forever to download. As a matter of fact we've gone over six years without posting a single advertisement.
With that in mind, links will be kept to a minimum and are now located halfway down on our home page.

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If you are searching for our company address or telephone number, since we don't sell anything on this website, we feel there is no need to post it.

If you really need to know, we are located a few miles north of Boston, Massachusetts, USA.

Still, if you feel you need to contact us (and we encourage E-Mail), you can find our E-Mail addresses on the home page.
If you are looking for pictures of 1728 Software Systems, Calculator City, corporate offices, employees, and so on, well we feel there isn't any need to post those either. Instead how about just the corporate logo?

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On mid-May, 2011 our domain name was stolen by someone in China.

This made us angry.