Casio FX-115MS Plus Scientific Calculator by Casio
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Digital camera reviews of Casio FX-115MS Plus Scientific Calculator
Digital camera Review: BEST CALCULATOR EVER OWNED
Summary: 5 Stars
It got me through high school/college(UMICH) Pre-Calculus and Calculus. Always had it on hand next to my extremely bulky TI-84 (Plus) which I only used for graphing.
It is very slim and comfortable to use. Plus, it has a solar power "thingy" just in case.
I really love this calculator and did not expect anything less than this from CASIO.
Now lets see if it will get me through CALC II.
Digital camera Review: Best calc for middle school math
Summary: 5 Stars
I have used many calculators through my years but this is the best simple, multi-function calculator. It can do basic functions with scientific mode and insert variables into equations. It has many features including a great 2 line display so that you can review the equation you typed in and look at the answer all at one time. It includes exponets, and the variable exponet key, spuare roots and cube roots, fractions sin, cos, and tan functions with memory and paranthesis among the basic calculator functions. I prefer the Casio to the Texas Instruments because this calculator is much easier to understand in button layout. I do not recommend this if your child is about to go to high school because when you go into high school, you will be required to buy a graphing calculator for geometry and such. Schools often require the Texas Instruments Model TI-83 which is very pricy and has so many functions that its mind-boggling. If you need an ideal calculator for algebra or pre algebra, this is the calculator for you.
Digital camera Review: Best non-graphing calculator
Summary: 4 Stars
I teach Physics, and recommend this calculator to my students over the ti30, as it is simpler to use and has lots of neat features. I have not tried the ms version, but I have several w's, one in each one of my desks.Digital camera Review: Best on the market
Summary: 4 Stars
I believe this is the best scientific calculator currently on the market. The price is reasonable, especially for those reluctant to spend ... on a graphing calculator. The keys are highly responsive and hard plastic. The layout is the best of any calculator I have ever seen. In my opinion Casio really thinks about key layout. Other calculators, such as the Sharp EL-506RB (the only other scientific calculator that comes close to this one) seem to have functions thrown across the keys wherever they will fit, without thought as to convenience or relative frequency of use. The manual is clear and concise, but the calculator is intuitive anyway. The only intructions I needed to look up were for numerical integration and entering data for statistical purposes. The only complaints I have about this calculator are lack of numerical differentiation and a constant/conversion function. If the calculator includes integration it only follows that differentiation should be included as well. Nonetheless, you can program in and save formulas for differentiation and Newton's method to keep and reuse later. The Casio FX-991w (which is no longer sold -- Why Casio? Why?) includes constants and constant conversions (the manual for both the 991 and 115 is shared, or I never would have known this.) As a physics student, I sometimes find myself needing to look at tables for certain constants and conversions that I wish would be included in the calculator. In light of the non-existence of the FX-991w, I must say that is is absolutely the best possible choice for a scientific calculator.Digital camera Review: Beware the bugs!
Summary: 2 Stars
I agree this is an excellent calculator ( along with its pared down sister the 300w ) but there are some disheartening bugs here...First , like my textbook, it doesn't allow right distribution as follows: enter ( 3) 2 and you get "syntax error" but 2(3) is acceptable.The I conclude this is not "very real" at all because anybody can read both of these = 6. Moreover, the calculator accepts 3(2 = 6 but rejects 3)2=syntax error.
I have also lost serious points when doing chi-square. Be sure to use parentheses or else! Try the following. Enter into Statistical mode. Then perform 10 -5 = 5 ,hit x-squared =25 then hit M+ as your first data point. Then call up the sum of the x= 625. Nasty surprise! In fact if you do any operation like that followed by any power or root, then hit M+ this calculator will repeat the power/root on your data entry. So , either be sure to use parentheses, or hit ANS then = keys before hitting M+ or you are in for a rude awakening. In summary, a really fine piece of workmanship, but watch the bugs!