| | |  | Calculators & Cash Registers | Home » » » » Casio FX-300ES Solar Scientific Calculator | | | | | | | Description: | | Natural textbook display shows formula and results exactly as they appear in the textbook. 249 built-in functions with easy menu. Solar Plus protects memory. List-based STAT Data Editor. Multi-replay function. Power Source(s): Battery Solar Display Notation: N/A Number of Display Digits: 10 Display Characters x Display Lines: 11 x 2.Unit of Measure : Each | | | Features: | |
• Amortization
• Backspace Key
• Base Number Calculations
• Bond Calculations
| | | Product Details: | | | Product Length:
| 3.11 inches | | Product Width:
| 0.5 inches | | Product Height:
| 6.38 inches | | Product Weight:
| 0.23 pounds | | Package Length:
| 7.2 inches | | Package Width:
| 4.3 inches | | Package Height:
| 1.4 inches | | Package Weight:
| 0.45 pounds | | Average Customer Rating:
|  based on 19 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
 ( 19 customer reviews )
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Most Helpful Customer Reviews
11 of 11 found the following review helpful:
 This calculator initiated a conversion in my life!Apr 01, 2010
By M. K. Kolencik
"I'd Rather Be in Stitches"
My first scientific calculator was a Sharp. Then I spent many moons in the land of TI. I'm so fond of the TI-84+ I had firmly decided I was a TI-gal. Then, I tried to buy some for my classroom a night or two before the start of the school year and the store was out of TIs. They had this lovely calculator. I'm embarrassed to admit just how long I stayed in front of that display debating over whether I was willing to commit to an unknown brand, especially when I didn't care for the Casios I had seen before. Finally, desperate to have a few on hand for my students, I purchased them.
It didn't take long for my students to find all the neat features. I originally chose them for the permutation/combination features and was curious about how useful stacked fractions would be for high school students. WOW.
My only complaint (until recently) was that they are so fabulous, five of mine walked off. This was bad news...until...I discovered the next level up which includes imaginary/complex numbers. So for next year...I'm going to upgrade my stash and guard them more fiercely.
I only put four stars because I soooo want those complex numbers now and all the other features I'm thinking I can get. I still prefer a TI-84, but our students are not allowed to use graphing calculators on their end-of-course test so I want them to get comfortable with a calculator that will serve them well. I was wishing I could put 4.9 stars (or 49/10 stars as my calculator would say). This is really a wonderful little device.
17 of 20 found the following review helpful:
 Good but there's a bug...May 04, 2009
By M. Greene
I chose this calculator after looking at 6-7 other candidates. I teach a Mathcounts class at a local middle school and this calculator has several key features. First and foremost is the 2 line, editable, display that shows me what a student keyed. That's crucial in helping me see where they made an error when they get a wrong answer. The 'editable' feature usually means that a few keystrokes are all that are needed to correct an error rather than re-keying the entire expression.
The second feature is the list of readily available functions. Mathcounts topics (mathcounts.org) cover a wide spectrum of mathematics far beyond what a typical middle school curriculum requires so the calculator had to have permutation, combination, and factorial functions. This calculator has them.
It handles fraction and radical notation nicely - it displays the square root of 12 as 2sqr(3) which helps the students check their conceptual understanding when we're rationalizing or simplifying radical expressions. Flipping between displaying 1/2 and .5 requires but a single keystroke. Flipping between mixed number and improper fractions requires only two keystrokes.
The solar panel has saved at least one student from having a completely dead calculator when he drained his battery. The panel ekes out just enough juice to give you a glimmering display which is better than nothing. A slightly larger solar panel would be nice.
Finally, the manual is available online so you don't have to try to read a multi-lingual manual printed in 6 point type on rice paper. Kudos to the project manager for posting the pdf. Much appreciated!
Unfortunately, there's a bug in the firmware which turned up in a calculator exercise. If you key in 75025 and ask for it to be represented to 4 significant digits in scientific notation, the calculator gives the correct result, 7.503e4. However if you arrive at 75025 by computing the 25th fibonacci number using f(25) = ((1+sqr(5))^25-(1-sqr(5))^25)/(2^25*sqr(5)), the calculator displays 7.502e4. Reset the display to show an integer result and it correctly shows 75025. Somehow, doing the calculation, as opposed to entering the number, confuses the display routine.
We work around the bug by rounding the result ourselves instead of relying on the calculator to do it but the bug somewhat reduces my confidence in the calculator's ability to correctly compute. Hopefully, the bug will be fixed by next school year when we buy another class their calculators. Were it not for the bug, I'd rate the calculator at 5 stars.
1 of 1 found the following review helpful:
 coolMar 29, 2011
By Bader
It makes using fractions easy. People how buy it read the manual book for 2 minutes it is useful. Thanks
1 of 1 found the following review helpful:
A Great CalculatorOct 10, 2010
By Cellence
The calculator works well and i have confidence in Casio. It is easily used and I am satisfied with the price.
1 of 1 found the following review helpful:
Great f for FractionsJun 26, 2010
By Elora B. Hayes
"Elora"
I really like this calculator. I am a teacher and I have one. This calculator enables me to quickly calculate fractions. I like the calculator so much that I bought my 8th grade algebra students one(10) as a graduation gift.
See all 19 customer reviews on Amazon.com
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