Casio fx115ES PLUS Engineering/Scientific Calculator
 Natural textbook display shows expressions and results exactly as they appear in the textbook
 Over 280 functions, including fractions, statistics, complex number calculations, base arithmetic, linear regression, standard deviation, computer science, and polarrectangular conversions
 Multireplay function allows you to backtrack stepbystep through calculations, where you can edit expressions and recalculate answers
CASIO fx115ES Plus Scientific Calculator
Casio’s most advanced scientific calculator to date, has been designed and engineered for easy operation at any level. The Natural Display and enhanced features like displaying root forms of equations, finding derivatives, product notation templates, and advanced inequality functionality, makes the fx115ES Plus extremely versatile and the perfect choice for high school and college students alike.
Suggested Courses
The fx115ES Plus is designed to support all users in the following courses:
 All General Mathematics courses
 PreAlgebra
 Algebra I & II
 Statistics
 PreCalculus
 Trignonmetry
 Chemistry
 Physics
 Engineering
Exam Allowance
The CASIO fx115ES Plus scientific calculator is permitted for use on the PSAT/NMSQT, SAT and ACT college entrance exams, AP tests, and NCEES exams.
Hardware Features
The fx115ES Plus is intuitive and easy to use as you progress through your coursework. It has twoway power, “Solar Plus with Battery Backup”, so you’re always ready!
Large Display
Offers a large, multiline display that allows for important multireplay functionality.
Functionality & Key Features
Some of the functionality you will find in the fx115ES Plus includes:
 Natural textbook display shows expressions and results exactly as they appear in the textbook
 Over 280 functions, including fractions, statistics, complex number calculations, base arithmetic, linear regression, standard deviation, computer science, and polarrectangular conversions
 ListBased STAT Data Editor
 Table Function
 Matrix and Vector Calculations
 40 Metric Conversions
 Multireplay function allows you to backtrack stepbystep through calculations, where you can edit expressions and recalculate answers
List Price: $ 17.99
Price: [wpramaprice asin=”B007W7SGLO”]
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Best calculator you’ll ever own,
For you calculus students out there that need a scientific calculator for exams: this calculator solves systems of linear equations (with up to 3 variables), quadratics, cubics, linear systems, does matrix inversion, addition/subtraction and multiplication, gives exact answers (sin(pi/4)=sqrt(2)/2), and is just in general a super easy calculator to use. I’ve been pimping Casio out for a while now, but seriously, for $15 this is the BEST investment you can make in your math education.
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FOUR CALCULATORS COMPARED,
Four great little calculators for under $20! The Author (TA) owns 3 of the 4 (he borrowed the 4th calculator to write this review), therefore he does not have to make the difficult decision of which one to buy. Prices from Amazon October 2013.
Your comments, corrections, questions, omissions are encouraged, even welcomed. Thanks.
CASIO FX115ES PLUS 16.24 (C)
CANON F792SGA 15.14 (N)
SHARP ELW516B (ELW516X 17.30) (S)
TI36X PRO 19.97 (T)
COMPLEX NUMBERS
C,N exact radical form
S can only be stored in M, division can not be entered as fraction
T does not require COMPLEX mode, must scroll to see all digits
STATISTICS/REGRESSION
C,N,S quadratic regression calculates both x1′ and x2′
N calculates mode and range
S does not calculate min Q1 med Q3 max, easy to RCL vars and to calc x’ & y’
T cubic regression, 2Var Stats menu includes x'(y) and y'(x) for linear reg
DISTRIBUTION
C,T normal, inverse normal, binomial, Poisson
N,S P(x) Q(x) R(x) x>t
BASE NUMBERS
N binary numbers displayed in blocks of 4digits
S can not + – * / different bases (no b o d h prefix/suffix), PEN (base 5)
T calculates LOGIC nand
POLYNOMIAL EQUATIONS
C,N 2nd degree (quadratic formula) exact radical form
C,T calculates vertex of parabola (S functions can be programmed)
N 4th degree polynomial (includes complex roots)
T gives option of storing results in variable memories
POLYNOMIAL INEQUALITY
C,N exact radical form of 2nd degree polynomial
N 4th degree polynomial
S,T no inequality
SYSTEMS OF EQUATIONS
C Infinite Solution & No Solution enunciators
N solves 4X4 system
S 4X4 matrices can solve 4X4 system using Inv(4X4)X(4X1)
S calculates determinant of Cramermethod denominator
T gives results of 2equation 3variable system in terms of z
FUNCTION TABLE
C 2 functions, f(x) & g(x) calculated sidebyside
N 1 function, f(x)
S no function table
T 1 function, Auto scrolls up or down from initial value of x
T x=? inputs user values for x (Auto is disabled)
MATRIX
C,T ref & reducedref
N, S 4X4 matrices, 4th matrix (matrix D)
N calculates adjoint matrix
S fill, cumulative, augment, random, matrix>list
N,S,T identity matrix
VECTOR
N 4th vector (vector D)
S no vector mode (uses LIST to calculate dot & cross products)
LIST
C,N no list mode
S 4th list (list 4), square, cube, reciprocal can be applied to lists
S sort A&D, fill, cum, difference list, aug, abs (sqrt of sqrsum)
S min max mean median sum product SD variance, list>matrix
T list formulas accept all calculator functions and real numbers
UNIQUE FEATURES
C VERIFY checks results of number & algebra expressions
C PreAns (PreAns + Ans generates Fibonacci Sequence)
C recurring decimal (gives ALL 60 digits of 1/61)
C remainder division (N,T have mod function)
C old FX115MS SOLVE did not require commavariable to select
C old FX115MS % could calculate percent + or – & percent change
C,N multistatements (displays all 6 answers of ambiguous case with =)
C old FX115MS could COPY multistatements
C,N independent memory M (generates & totals A or G sequence with =)
C,N Square Root & Ans require single keystroke (not Shift 2nd 2ndF ALPHA)
N RATIO solves 3rd or 4th term of direct proportion
N 38 math & science & engineering formulas
S DRILL quizzes & grades user on basic add, sub, mult, div
S % + or – (with single keystroke of %), (C,N,T % only changes % to decimal)
S Simpson’s rule, N=1, exact & fast for 2nd & 3rd degree polynomials
S no Int, Mod, Prime Factors, PI (product of sequence), GCF, LCM
S GCF & LCM can easily be calculated with fraction button
S SOLVER only solves for X
S 4 formula memories, 4 definable memories, 4 constant (K) calculations
S CTLG gives complete catalog of all available functions for each mode
S OFF displays SHARP logo with name and telephone number of owner
S no parentheses for argument (X) = fewer keystrokes (log trig trigh R<>P)
S 9 Metric/Engineering Suffixes (femto – Tera)
T MultiTap Keys cycle through multiple functions when pressed (! nCr nPr)
T recall (RECALL VAR) displays menu of all 8 memory variables & stored values
T memory X can be accessed with a single keystroke
T setop & op Stored Operations (up to 44 characters) applied to ANS or entry
T can not clear old data with single keystroke (matrix, vector, poly, sys)
T no cube, cuberoot, independentmemory (M)
FRACTION DECIMAL CONVERSIONS
C S<>D (improper>repeating>decimal), shift a b/c<>d/c (mixed)
N F<>D (improper<>decimal), shift a b/c<>d/c (mixed)
S CHANGE…
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even better version of an already excellent calculator,
I have previously used the FX115ES calculator (this one is the “PLUS” version, of course), which I liked a lot, found very useful for all my math/science classes. What’s telling is that I also have a very nice graphing calculator, the TISIlver Plus, but when I want to use a calculator, I always prefer the Casio.
So the new one is even better. Why?
Firstly, it has all the features of the “non plus” version:
1. many useful and easily accessible function keys, such as for integral, derivative, log, logbasex, hyp trig, fraction, factorial, variable substitution, solving 1var equation, etc.
2. displays answer in fraction form or decimal, allowing easy switching between the two with one button
3. displays answers in simplified form: e.g., you enter “sqrt 24” it shows 2 sqrt(6) using the proper symbol of course (hit decimal button to get 2.xxx form); calcs with pi are shown using the pi symbol until you hit the decimal display button
4. stat functions such as mean, median, quartile, percentile, as well as regression
5. solving simultaneous equations in 2 or 3 vars, quad & cubic equations in 1 var
6. many many other useful functions, such as polardegree conversion, unit conversions, scientific constants
Additional features in the PLUS version:
1. display repeating decimals in bar notation
2. modulus function
3. finite product (product of a finite series of values)
4. GCD and LCM calculations
5. access to “answer” and “previous answer” (i.e., answer to previous two calculations)
6. solving quad & cubic inequalities (not just equations)
7. normal, inverse normal, binomial, and Poisson distributions (both cumulative and prob density)
8. lots more, but you get the idea
All this for an insanely low price! (Crazy Eddie isn’t involved, for those who get that reference.)
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