# Scientific Calculators

## What is the Best Scientific Calculator?

Competition in the calculator market is heating up with makers releasing or updating several new calculators. With dozens of choices on the market, deciding what is the best scientific calculator can be overwhelming. To help you choose the scientific calculator that best fits your needs we have created this helpful chart for you or you can scroll below to see our pick of the top three best scientific calculators.

Photos | Name | Price | Our Rating |
---|---|---|---|

TI-36X Pro Scientific Calculator | $$ | 4.7/5 | |

Casio FX-115ES PLUS | $ | 4.7/5 | |

HP 15C Scientific Calculator | $$$$ | 4.5/5 | |

Casio fx-300MS | $ | 4.5/5 | |

Texas Instruments TI-30X IIS 2-Line Scientific Calculator | $ | 4.3/5 | |

Sharp Electronics EL-W516XBSL | $ | 4.3/5 | |

TI-30XS MultiView Scientific Calculator | $$ | 4.2/5 | |

Texas Instruments TI-30XA Scientific Calculator | $ | 4.2/5 | |

HP 35s Scientific Calculator | $$$ | 4.1/5 | |

Hewlett Packard 300S+ Engineering/Scientific Calculator | $$ | 3.6/5 |

### Our Picks for the Three Best Scientific Calculators

Best: TI-36X Pro Scientific Calculator

The TI-36X Pro is fantastic, it comes as close to perfection as we have seen. Heavy users rave about its rich features and ability to easily store previous entries in its stack making solving complex problems a snap.

Adding to the reasons that the TI-36x is the best scientific calculator is that it is virtually universally accepted by faculty and major standardized test making this the only scientific calculator you will need to buy and will want to start familiarizing yourself with it as soon as possible since odds are one day you will be forced to use for an upcoming class or test.

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Runner Up: Casio FX-115ES PLUS

With the release of the updated version of the FX-115ES the new PLUS version is a rock solid scientific calculator. Math students will appreciate that the calculator can now display repeating decimals in bar notation, PLUS users now have the ability to access previous answers, as well as solve quadratic and cubic equations, just to name a few of the vastly important improvements in this model.

If you choose this calculator we believe you will not be let down as this is a solid well rounded, fully featured graphing calculator.

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Worth Considering: HP 15C Limited Edition

Old school engineers will drool at the news that the classic HP-15C has been re-released as a special commemorative limited edition. Serious calculators are snapping these up and a hot secondary market is forming around these with prices skyrocketing on Amazon.

This calculator is a classic for a reason though, the design is nearly perfect. Users who have spent the time learning how to use the unique reverse Polish notation would never dream of switching back, and many get a kick when someone who has never used an HP calculator ask to borrow theirs and they cannot even figure out how to add 2+2 on the calculator.

If you want to win the admiration of your professor or boss, whip one of these out and watch their eyes light up.

>>> Click here to check reviews and prices on Amazon < < <

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## Hp 15C Limited Edition Scientific Calculator Review

# Hp 15C Limited Edition Review

The HP 15C Limited Edition was released on the 30^{th} Anniversary of Hp-12C edition. The earlier version (HP 15C Scientific Calculator) was introduced in the market in 1982 but it was discontinued in 1989 and the price of that scientific calculator was about $100. The latest version of Hp-15C i.e. HP 15C Limited Edition was released in 2011 and its price was about $180. The Hp-15C Limited Edition is the latest version of HP 15C Scientific Calculator with the modern ARM technology which is powered by 12C hardware. This new version is very practicle for the power users, providing portability and it provides RPN mode which makes the computation easier. This version is more advantageous to engineers as it provides the complex computation operations like complex numbers, matrix operations, integration, differentiation and roots problems. The new version of the HP-15cis better than its original version in many respects i.e. the design of HP 15C Limited Edition is more simple and elegant, it provides more scientific functions, it is portable as it can be placed in the pocket of a shirt and its keyboard keys are less solid and are user friendly.

The Limited Editionis much faster than the original Hp-15C as it provides the answers of the complex problems like integration of polynomial functions and factorial of non-integers in the glimpse of an eye. HP has provided about one hundred times faster operations than the original Hp-15C edition. The palpable response of the keys of the Limited Edition is another big achievement of Hewlett Packard. The re-released version has a detailed manual about using the calculator for the desired calculations, a sleek and attractive collectible box and a CD for the instructions. The display of the Limited Edition is also better than the original one as it provides a wider display range and better contrast. The processor is much faster and the operating system starts up and shuts down instantly. To sum up the whole story, the Limited Edition is better than the original version in all respects. If you want a fast computations, a large display, palpable response of the keys, portability of the calculator, a scientific calculator with all the functions needed for the engineers and scientists then don’t wait prices are rising fast on the Limited edition as the short supply is gobbled up by die hard HP collectors itching for a chance to own the new HP 15C Limited Edition.

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## HP 35s Scientific Calculator Review

# HP 35s Scientific Calculator Review

This calculator is classic by many means. It has the look and feel of a serious machine, and the display of a traditional scientific calculator. If you are a loyal HP user, this calculator will feel familiar. The HP 35s Scientific Calculator is a Reverse Polish Notation (RPN) calculator, which means that it doesn’t require the use of brackets to define priorities for evaluation of operators. Some people are long time RPN users and absolutely swear by the method. Some newcomers claim that RPN is very easy to learn and worth the time. Others, yet, prefer to bypass the whole system and go with a more user-friendly and intuitive interface. The RPN mode comes in handy especially in a scientific calculator with fractions like this one in which fractions can be inputted in a variety of ways, as per the user’s choice. The HP 35s calculator is programmable, a huge plus for those who rely on pre-programming to facilitate everyday calculations, or speed up certain test problems. However, only a few programs can be stored since it limits the number of labels and variables to 26.

This scientific calculator with fractions makes it easy to view and perform both regular as well as mixed fractions. It features a fraction button and gives the user the choice to input the fraction using RPN or algebraic mode. Both modes will return the same result, the main difference is in the format of the input. This is more than just a scientific calculator with fractions, it performs advanced mathematics, especially the type required in scientific, medical and engineering professions. Engineers who are already familiar with RPN may consider this calculator a good choice for the NCEES PE and FE exams. Although, it’s not a good choice for everyone because of its interface, it does deliver on the math. Some features are made to facilitate common problems like two-variable equations. Enter and solve two equations with two unknowns simultaneously using the HP Solve application. Enjoy features like numerical integration, and complex number and vector calculations.

Without solar assistance, expect to change the batteries quite often. The physical design of the calculator is attractive to the serious type, and the buttons are ergonomic and feel easy and comfortable to the touch. A hard protective cover comes included with the calculator.

Unlike most recent scientific calculator models that display four lines at a time, the HP 35s only displays two lines. It also doesn’t feature the newly coveted textbook-like display. This is not the most intuitive or user friendly calculator, but it will certainly appease the more traditional user looking for nothing more than pure programming and mathematical power.

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## Casio FX-115ES Plus Review – Casio Scientific Calculator

# Casio FX-115ES Plus Review

Casio claims that this new calculator is their most advanced scientific calculator to date. It is, in fact, especially when compared to Casio’s previous lines of scientific calculators. The Casio Scientific Calculator FX-115ES PLUS offers the newest trend in scientific calculators: the “natural textbook” look. Inputting complicated equations and reading outputs is made easier with this function because of the way the numbers are organized on the screen. For example, fractions look exactly as they would if written on a piece of paper – a numerator directly above a horizontal line and a denominator underneath. Pi is depicted symbolically and square roots are easier to visualize. This is a feature that helps tremendously during test-taking, especially if your mind is accustomed to viewing equations and examples from written texts. The Casio FX-115ES PLUS also holds previous entries and outputs in memory so that you can recall and modify current entries.

The Casio FX-115ES PLUS is a good choice for the NCEES FE and PE exams as its mathematical capabilities are sufficient for most Engineering demands, even more advanced ones. This calculator makes unit conversions easy since the most common unit conversions are pre-programmed into it. During a test, the last thing you want is to strain your brain for scientific constants; this calculator takes that pressure off by giving you access to codes for over forty scientific constants right inside its cover. Enjoy many other useful time- and energy- saving functions. Find the xth root, factorize prime numbers, calculate remainders, convert between metric units, calculate equations and inequalities, perform matrices and vectors, and use complex numbers among many other standard scientific calculator functions.

There is a major drawback to this calculator: its history is wiped when the ON button is pressed or when switching between modes. The calculator automatically shuts off after a couple of idle minutes, which is great for saving power during a long day of problem solving, but if you step away for a quick break everything input and calculated up until then will be gone when you return. This has been reported as its main issue by otherwise very satisfied users.

At 3.35 ounces, this calculator won’t add any burden to your backpack. Its keys are plastic and it comes with a hard cover for safekeeping. The price of this calculator certainly doesn’t reflect its enormous range of possibilities. For the low price, the Casio FX-115ES PLUS is a great investment for anyone looking to adopt and become familiarized with their first – or next – scientific calculator.

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## Texas Instruments TI-30XS Mulitview Scientific Calculator Review

# TI-30xs Multiview Calculator Review

TI-30XS Multiview Calculator stands on its own as a great scientific calculator for beginners, but it lacks a lot of calculation power found in more advanced calculators like the TI-36X Pro . This is a very user-friendly calculator above all. Its four-line display is easy on the eyes and the memory as several equations can be held on the screen at once. Even better, the home screen is scrollable and includes a cut/paste function to incorporate previous outputs into new equations. This calculator features TI’s Mathprint™ which makes your input look just like the writing you generally see in textbooks: fractions are vertical and square root signs actually house numbers entirely. Enjoy seeing the pi’s symbolic depiction, generating random numbers, and converting angles between degrees, radians and grads. The keys are made of hard plastic and organized much in the same way of graphing calculators, and the solar panel prolongs the battery power. Like most TI-s, the TI-30XS Multiview Calculator comes with non-skid rubber feet and snap-on protective case.

Now, let’s talk about actual mathematical capability. High school students: this calculator is a charming step stool to the big bad world of math. Engineers, physicists and statisticians: this calculator is the best calculator for high school students. Even its custom color options scream teenager. This calculator simplifies fractions, and does up to two-variable statistics. Don’t try solving polynomials or finding derivatives because it won’t know what you’re talking about.

The NCEES PE & FE guidelines do allow this calculator to be used. However, it may be wise to invest in something a little more advanced for such an exam. This calculator is geared more towards lower-level exams like the SAT, ACT and AP exams. As enjoyable and useful as the stacked fraction function, the ability to switch between improper and mixed number fractions, or toggling between exact numbers and approximations are, other functions will serve you better in a test as complex and mathematically involved as the NCEES PE and FE. For example, compared to its more advanced counterpart, the TI-36x Pro, this calculator lacks the ability to solve complex equations and perform matrices. Some of the features you can enjoy on this calculator include x,y table lists (made possible by the four-line display), and outputs written out in scientific notation, where superscripts are written out as they would be on a sheet of paper. For those in biology, pre-algebra, algebra 1 and 2, or general chemistry classes that don’t allow the use of graphing calculators, the TI-30XS Multiview Calculator might be your best bet.

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## Texas Instruments TI-36x Pro Review – Best Calculator For FE Exam 2014

# Texas Instruments TI-36X PRO Review

The TI-36X Pro Scientific Calculator is a calculation powerhouse and a perfect companion to the aspiring and the accomplished engineer. Its functions are advanced in nature but its interface is simple and user-friendly. The input and data manipulation styles of this calculator are comparable to that of graphing calculators; it allows for scrolling through entries, making edits to previous entries and pasting inputs or outputs into new calculations. Its four-line display makes it easy to visualize up to four calculations at a time and allows for mathprint view of equations – input equations into the calculator in the same way that you would write them out by hand on a sheet of paper. Unlike other scientific calculators, the TI-36x Pro performs vectors and matrices with simple input.

The Texas Instruments TI-36X Pro Calculator is approved and recommended as the number one choice as the best calculator for the FE exam. In terms of the available mathematical calculation capacity, this calculator introduces several facilitating functions. One of the main perks of this calculator is that it solves equations! This calculator will actually solve most numeric and polynomial equations, as well as up to 3×3 systems of linear equations within seconds. During exams like the NCEES series, this will save a lot of time because it will eliminate the need for certain tables, and step-wise calculations. The TI-36X Pro also offers a very helpful unit conversion function. For those taking the Electrical FE or PE, you’ll enjoy the “Power, Energy” conversions. Civil Engineers can take advantage of the “Speed, Length” conversions. The other conversions include “Temperature”, “Pressure” and “English-Metric”. Unfortunately, this calculator has left out automated metric units, which means you won’t be able to simply press a button to indicate that you are working in the, say, Mega range. However, it did store some constants – speed of light, proton mass, Faraday constant, and many etc.’s – in its memory along with each one’s units so you don’t have to fumble around your own memory searching for these.

This machine of mathematical wonder holds a few time-saving advantages in its design that propels it to the number one spot. First, there’s no need to switch between modes exclusively, which in some other scientific calculators is not only necessary but may result in complete devastating loss of all calculations done in previous modes; there’s no time for that during an important test. Another feature, which is introduced by this model, is the multitouch function. Switch between functions like sine, inverse sine, hyperbolic sine and inverse hyperbolic sin all with consecutive touches of the same button. This applies to several other frequently used functions as well, like *pi*, *e* and *i*. With all of the capacity built-in to this quasi-graphing calculator, it’s no wonder they had to implement a multitouch function.

Although the TI-36x Pro is a handy tool for engineers, it’s also recommended for physicists, statisticians, computer scientists, biologists and all other professionals who need to perform complicated calculations but can forgo graphing power.

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## Reverse Polish Notation Calculator – RPN Vs Algebraic Calculator

Reverse Polish Notation is also known as “postfix notation”. It is named so because in this notation all the operands are placed before the operator. This notation is also of interest because no parenthesis is used in RPN notation. A Polish logician and philosopher Jan Lukasiewicz invented prefix notation in 1920s; that’s why the word “Polish” has been placed in the title of this notation. Burks, Warren and Wright were the people who were involved in introducing Reverse Polish Notation scheme in 1954. There was further development in the algorithms of RPN in the mid of 1950s by Charles Hamblin. RPN scheme was known to many calculator users during 1970s and 1980s. Hewlett Packard used Reverse Polish Notation first time in the scientific calculator named 9100A in 1968.

While using the calculators with algebraic notations, the use of parenthesis is quite a big problem. The parenthesis does not matter a lot in simple calculations but they create much confusion while dealing with complex calculations. The BODMAS rule is applied while dealing with the mathematical calculations using algebraic notation but the BODMAS rule becomes very confusing when there are brackets in the mathematical expression and it becomes even more confusing when there are brackets inside the brackets. This mess can be solved by using calculators using Reverse Polish Notation in which the operators appear in the order which is required for the computation. In the calculators using RPN, complex calculations can be done quite easily by using a minimum number of special symbols.

One simple example can serve this purpose of showing that the calculators using RPN are better than the calculators using algebraic notation. Suppose we want to calculator “4+5×2” in such a way that we want that the operator “+” operates before “×” giving the result equal to “18” neglecting the BODMAS rule. This thing can only be done in the regular calculators using Algebraic notation by using a bracket across “4+5” so that the above expression takes the form as “(4+5)×2”. Now this will give the right answer as we want.

There are many reasons for using a RPN calculator rather than a calculator using algebraic notation. An RPN calculator saves time because the same calculation can be performed in less time as compared to a regular calculator. For example, we want to compute “(13+3)÷(4×2)” using a calculator of algebraic notation (not a scientific one) then we have to do many steps to reach the answer. Firstly, we have to compute “(13+3)” and then we will save the answer to the memory of the calculator. Then we have to compute the calculation in the denominator i.e. “(4×2)” and we have to save this answer too to the memory of the calculator. In the end, we will bring both the answers and will perform the last operation of division. This procedure has taken a reasonable amount of time. This thing can be avoided by using RPN calculator. In RPN calculator, we have to insert just a single line expression as “13 Enter 3 + 4 Enter 2 × ÷” and the answer will be computed instantly.

Reverse Polish Notation has stack which is absent in case of algebraic notation calculators. RPN operates in a way that if an operand appears next in the expression then the operand value is pushed on to the stack and if an operator appears next in the expression then two operand values from the top of the stack are popped and the answer of these values is pushed on to the stack. For example, if the expression “4+6+7” has to be computed then in RPN, it is inserted as “4 Enter 6 Enter 7 + +”. The value “4” is pushed on to the stack followed by the value “6” and then followed by “7” but after appearing the operator “+”, two values from top of the stack i.e. “7” and “6” are popped up and their result i.e. “13” is pushed on to the stack. After appearing the operator “+” in the expression again, two top values from the stack i.e. “13” and “4” are popped up and their result i.e. “17” is pushed to the stack. The other important feature of RPN is that we can go back to any place in the stack by using they key “R↓”.

The other reason of using RPN rather than algebraic notation is that RPN is less complicated. While doing the calculation like “12+8”, the answer of the calculation is not displayed on the screen until we press “=” or any other operator symbol. This thing is very confusing for the users because on pressing “+”, “-“, “×” or “÷” symbol, the respective operation must take place rather than giving the result of the previous calculation. RPN in more intelligent in this case. When “+” key is pressed in case of RPN then addition is performed always; that’s the case with subtraction, multiplication and division.

It is usually thought that algebraic calculations are taught in schools because they are easy to understand. The algebraic calculations are easy to be inserted in the calculator as we have just to read the mathematical expression from left to right and then inserting the expression in the calculator. But this thinking is absolutely wrong because algebraic calculations are easy to be done only in the case when we are inserting the mathematical expression into the calculator by reading from some source. But if we have to deal with the expressions which are made on the spot by mind then RPN is the best method because we don’t have to remember the calculation results in the intermediate steps to move ahead as in the case of algebraic calculations.

This thing can easily be done using RPN. In all the calculators using RPN, there is a key named “Enter”. This key is pressed every time when an operand is inserted in the expression to separate one operand from the other. While solving the mathematical expression “(4+5)×2” using RPN calculators, the expression is inserted as “2 Enter 4 Enter 5 + ×”. This will give the correct answer as “18”. Likewise if we want to calculate “4+(5×2)” then this expression is inserted in RPN calculator as “4 Enter 5 Enter 2 × +” and this will give the answer as “14”. This thing happens in the stack in the following way:

For Mathematical expression “(4+5)×2”

First Step (Initial State)T: 0Z: 0Y: 0
X: 0 |
Second Step (Press “2” then “ENTER”)T: 0Z: 0Y: 0
X: 2 |

Third Step (Press “4” then “Enter”)T: 0Z: 0Y: 2
X: 4 |
Fourth Step (Press “5” then “ENTER”)T: 0Z: 2Y: 4
X: 5 |

Fifth Step (Press “+” then ENTER)T: 0Z: 0Y: 2
X: 9 |
Sixth Step (Press”×” then ENTER)T: 0Z: 0Y: 0
X: 18 |

For Mathematical Expression “4+(5×2)”

First Step (Initial State)T: 0Z: 0Y: 0
X: 0 |
Second Step (Press “4” then “ENTER”)T: 0Z: 0Y: 0
X: 4 |

Third Step (Press “5” then “Enter”)T: 0Z: 0Y: 4
X: 5 |
Fourth Step (Press “2” then “ENTER”)T: 0Z: 4Y: 5
X: 2 |

Fifth Step (Press “×” then ENTER)T: 0Z: 0Y: 4
X: 10 |
Sixth Step (Press”+” then ENTER)T: 0Z: 0Y: 0
X: 14 |

HP 15C Scientific Calculator

is shown in the figure below. Hp-15c uses five registers in complex mode. There is an easy method to enter a complex number in Hp-15c. The real part of the complex number is entered by pressing “ENTER” and then the imaginary part of the complex number is entered by pressing “f1” key. By doing so, the real part of the complex number is displayed on screen and the imaginary part is saved to the stack. The user can see the imaginary part on the display of the calculator by pressing “f(i)”. In this way, the user can see both the imaginary and real parts of the complex number.

HP 15C Scientific Calculator

was the first model with Matric calculation. The calculations on this calculator can be done with 5 matrices which are named as A, B, C, D and E. There is a very easy way to set the dimensions of the matrix on this calculator. The user has to enter the expression “2 Enter 2 fDIM A” for defining matrix A as 2 by 2 matrix. The user can insert the elements of the matrix explicitly by adjusting the rows and the columns. The size of the matrix as defined by the user can be shown by the expression “RCL MATRIX A” and the result will be displayed on screen as “2 2”. This calculator has the capacity for storing 64 matrix elements. Many of the matrix functions can be performed on this calculator like determinants, LU Decomposition, Inverse of the matrix, multiplication, addition, subtraction etc.

By looking at all the factors discussed so far, it is proved that RPN is much better than the regular algebraic calculation because RPN saves time; the calculations can be done with less number of keystrokes; RPN has stack; there is no need of parentheses in case of RPN; RPN is more intelligent; RPN is elegant and RPN does the computation which matches the thinking of the user.

### Interested in reading more about reverse polish notation? Check out Algorithms for Reverse Polish Notation Calculators

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## TI-30X IIs Scientific Calculator Review

The TI-30X IIS 2-Line Scientific Calculator is a very good scientific calculator which is preferred and recommended by both students and teachers alike. The Texas Instruments TI-30X IIS is one of the best selling scientific calculator for good reason and is the one I personally

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