Casio FX-115ESPLUS calculator - calculators (Pocket, Battery/Solar, Scientific calculator, Purple, Silver, Plastic)

Product Information

They were super long lasting, the only time I needed to replace them was when I misplaced them or a friend I loaned it to lost it! Recommended for high school and college students learning Algebra II, Trigonometry, Statistics, Calculus, Engineering, and Physics. The hard cover creaks against the calculator body when the unit is picked up, indicating a flimsier or more ill-fitted design compared to the old model. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average.

The Casio for instance has a small battery compartment in the back which facilitates easy removal/replacement of the single LR44 cell. Like I said, I never needed to replace any so as far as I’m concerned, with regular everyday use this battery is super long lasting! I think the 115ES (original) is OK, but (seemingly) unlike a lot of people here, I prefer the Sharp 516 (and even the 506).

Whether you are an experienced DIY-er or a first time battery replacer, this guide is designed to help you get your Casio FX115ES PLUS calculator back up and running in no time. In this guide, we will walk you through each step of the process, providing detailed instructions and helpful tips to ensure a successful battery replacement. Matrix and Vector Calculations: The Matrix mode allows you to perform matrix operations on matrices with up to 3 rows and 3 columns. The fx-115ES Plus 2 is an advanced scientific calculator featuring Natural Textbook Display™ that is an excellent choice for high school and college students learning Algebra II, Trigonometry, Statistics, Calculus, Engineering, and Physics. Over 280 functions, including fractions, statistics, complex number calculations, base arithmetic, linear regression, standard deviation, computer science, and polar-rectangular conversions.

You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Over time, the battery in your calculator may start to wear down and lose its ability to hold a charge, which can result in your calculator not functioning properly. New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging . I have had no issues reading this screen both indoors and out (after exams discussing questions) in all kinds of light scenarios.In MathIO entry mode, there is no keyboard buffering, so when entering a long formula, the calculator redraws after each key press, but as the formula becomes longer and slower redraw, it can miss keystrokes. This is one of the few calcs that has a fraction function (see photo - ps: equation in photo is [(12/6)/6]). Fortunately, replacing the battery is a quick and simple process that can be done at home with just a few tools and some basic knowledge. Simultaneous and polynomial solver helps you compute simultaneous linear equations with 2 or 3 unknowns, quadratic equations and cubic equations. Fraction calculations include simplifying fractions and roots, recurring decimal display, remainder calculation and integer division with remainder.

My speed tests use a continuous-sum function that closely reproduces function execution performed by a 2500-iteration Savage benchmark. functions are included, such as prime factorization, hyperbolic functions, greatest common divisor and least common multiple, summation notation and verify computations. Statistics and Linear Regression: This calculator can linear regression, quadratic regression, logarithmic regression, e exponential regression, ab exponential regression, power regression and inverse regression. conversion factors were not revised at all, which makes them totally unacceptable at the new precision!Simultaneous and Polynomial Solver: This calculator will solve simultaneous linear equations with two unknowns, simultaneous linear equations with three unknowns, quadratic equations and cubic equations. The latter will display both the quotient and remainder, but if used in a chain calculation only the quotient is retained. With 460 total functions, this calculator is ideal for students in general math, pre-algebra, algebra I and II, geometry, trigonometry, statistics, calculus, chemistry and engineering. The keys of the older model have straight top and bottom edges to promote the key settling in its panel hole perfectly upright and level with the other keys in that row.

Calculate linear regression, quadratic regression, logarithmic regression, e exponential regression, ab exponential regression, power regression and inverse regression. G This is a very capable product, but in trying to cram so much stuff in a small package the designers came up with a complex, un-intuitive mess. Complex number calculations include addition, subtraction, multiplication, division, augment and absolute value, reciprocal, square and cube and conjugate complex numbers.The battery protects memory content when the calculator is off, and kicks in when there's insufficient current from the solar panel for regular operation. It seems like it should be possible, even if it would have to throttle its processing speed while running. Multi-replay function allows you to backtrack step-by-step through calculations, where you can edit expressions and recalculate answers. I wish that complete calculator state was preserved upon automatic or manual shutdown, but all levels of previous calculation history and results display are lost just like on the old model. There is no a piece of rubber on the back of the calculator to stop it from sliding all over the table.