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practice on board. You are allowed to use this image on your website. If you do, please link back to my site as the source: creditscoregeek.com/
Example: Photo by CreditScoreGeek.com
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Mike Cohen
Casio FX-7000G - the worlds first graphing calculator (1987), Casio FX-CG10 - worlds first full colour graphing calculator (2010).
Decimal calculator is most commonly used 10- base number system in math. Decimal is a very basic and important part of number system. To make decimal calculation more easier you can use decimal calculator. There are different kinds of operations involves in decimals. Such as adding , subtracting , converting decimal to fraction along with concepts like rounding decimals, decimal place value etc. So, here in this page you will get all those tools which make calculations easier for all decimals concepts involving decimals.
February 18th 2012
Camera: Canon EOS 7D
Lens: EF-S 60mm f/2.8 Macro USM
Focal length: 60mm
ISO: 100
Aperture: f/8.0
Exposure time: 1/200sec
Speedlite 580EX II
Old slide ruler bought many year ago. Never really used as I had my TI-59 calculator.
© Ole Houen - 2012
Copyright for this gallery photo belongs solely to Ole Houen. Images may not be copied, downloaded, or used in any way without the expressed, written permission of the photographer.
Calculator display with HELLO formed from the upside down numerals 07734 when viewed inverted, conceptual illustration
Day 293/365 of the 2009 Challenge. The theme is "Calculator".
This calculator belonged to my grandfather. I don't know how old it is, but I would guess he obtained it sometime in the 1950's.
Vintage Royal Litton 'Special' calculator from the early 1970's. One of the few 'four-bangers' in my collection (most others in the collection are programmable or scientific).
My collection of Texas Instruments graphing calculators. The TI-81 was a class requirement in one of my high school math classes, circa 1991. There was an option to borrow these from the school, but this is the one I purchased and it still works fine all these years later. Next is the TI-85 which I bought during the summer between highschool and college, in 1992. As luck would have it, the TI-85 also became a class requirement for my first math class in college, so it turned out to be a worth while purchase. Our instructor was amazed by this calculator and our "tests" tended to be more about writing programs for the TI-85, rather than solving actual calculus problems. Third one is the TI-86 purchased several years later during my first job out of college. At the time, my wife was using my TI-85 at her job, so I needed another calculator with units conversion capabilities. The silver TI-84 Plus Silver Edition was found at a garage sale a couple of years ago for $5 USD and I could not pass up that bargain, even though I had no practical use for it. It still has the price tag on it to remind me of the good deal. The TI-85 and TI-86 are much better in my opinion, I love being able to do conversions directly from the main screen without having to load up an application like on the TI-84. Missing from this collection is the massive TI-92 that I also had during college. I spent many hours writing useless programs such as draw poker, and sold it shortly after graduation.
Retro-styled HP 35s scientific calculator launched in commemoration of the 35th anniversary of the original HP-35
Satisfying the buyer's need for control.
A two-sided display works towards increasing the sense of control for the buyer standing across the counter. How and where else is this aspect important in retail?
There are 4 diode positions on the Scan PCB which set various options. 2 Are normally fitted, giving 80 step (not 50 step) programs and 10 (not 4) data registers. One of the other diodes exchanges the positions of the ln/log and exp/10^x functions, the last one appears to have no effect. Here, a DIP switch is temporarily soldered to the Scan PCB so as to be able to switch the diodes in and out of circuit to investigate their functions
Calculator on Keyboard
Please feel free to use this image that I've created on your website or blog. If you do, I'd greatly appreciate a link back to my blog as the source: CreditDebitPro.com
Example: Photo by CreditDebitPro
Thanks!
Mike Lawrence
Just some faces I noticed on my graphing calculator during my free period at work today. Shaky cell phone photos.
My old Sharp student's scientific calculator, it has been working on original batteries (shown) for an incredible period since 1983 !