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The new Orion TI-30XS costs $399 (the older Orion TI-84 Plus costs $599), and closely resembles the standard, non-accessible version of the same calculator. In fact, the only two visible differences between the accessible and standard TI-30XS are a slightly thicker back cover, and where the standard model has a solar charger, the Orion version has a row of three access keys (described later in this article).

The Orion TI-30XS comes with the standard clip-on front cover, along with a slide cover that more completely protects the calculator from backpack jostling and other potential damage. A USB charging cable and wall adapter are also provided in the box, along with a pair of ear buds, quick-start documentation in large print and braille, and complete digital documentation on an included thumb drive.

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As mentioned, the Orion TI-30XS includes a row of three accessibility keys instead of a solar panel. Other than this replacement, the unit is identical to the standard model on the keypad face, sides, and bottom edges. The middle of the back face extends about a half inch, and there is an audio jack to the left and a USB port to the right along the top edge,. The USB port charges both the calculator and the accessibility functions. The battery, replaceable with the help of a screwdriver, is rated to last four to five years.

The Orion TI-30XS includes a 4-line, 13-character display, versus the 8-line, 14-character display of the TI-84 Plus. This is not a significant limitation, however, as you can use the review keys to scroll in any direction. The Orion TI-30XS also lacks graphic capabilities and haptic feedback, but it does offer table mode calculations and the ability to accessibly review them. The calculator can display in both Classic and Math Print views, but only the Classic view is speech accessible. The Orion TI-30XS does not offer braille display output.

The three accessibility buttons run horizontally across the top of the unit. From left to right they are the Access (labeled "A") key, the Silence/Learn ("S/L") key, and the Repeat ("R") key. To me this layout represents the epitome of simplicity and elegance. No bypass keys need to be used to make the unit accessible. Consequently, a teacher of students with visual impairments can teach a blind student how to make her calculator talk, then get out of the way and let the math teacher do her job without the student needing to know about special adaptive commands that might get in the way of hands-on instruction.

This key repeats the calculator's last utterance. Press it once to repeat the last spoken feedback. Press and hold the Repeat key to voice the entire screen. Press the Access key followed by the Repeat key to voice the screen character by character. Unfortunately even the word "Blank," which denotes a blank line, is voiced one character at a time.

Press the Access key followed by the S/L key to turn off speech completely. This is a useful feature when the student wishes to share her calculator with a teacher, parent, or fellow student. Press the S/L key again to turn accessibility back on.

The Orion offers a Learn mode, which is toggled on and off by pressing and holding the S/L key. With Learn mode enabled, pressing any key prompts the calculator to announce that key's label. Here, APH distinguishes between the function of a key and its label. For example, the Orion voices "N over D" instead of "fraction," and "H Y P" instead of "hyperbolic function." This may take a little extra learning in the beginning, but this holds true for sighted users as well, and, once learned, the blind student will likely feel more at home using the same labels as their classmates.

One last voice setting, pressing the 0 (zero) key, toggles the voicing of the apostrophe. With this feature enabled, the calculator is supposed to voice a tic between rows and columns of a table as the user scrolls up and down, left and right. This sound refused to play on the unit I tested, even after I reset the calculator several times by holding down the Power and Clear buttons at the same time.

Another minor voice issue I experienced was the Delete key. The letter to the left of the calculator is supposed to be announced when the Delete key is pressed. The unit I tested almost always voiced simply "delete." This and the apostrophe voicing glitch both seem like simple software bugs that can be addressed in a future firmware update.

Finally, giving the Access key a quick press puts the user into Access mode. The Left and Right keys now review one character at a time; the Up and Down keys one line at a time. The 4 and 6 keys move you to the beginning and end of a line respectively, while the 8 and 2 keys move to the top and bottom of the display. Access mode uses a review cursor that does not move your actual calculator cursor. However pressing the 5 key will route your calculator cursor to the review cursor, at which time you can turn off review mode with another press of the Access key and edit your formula.

The Access key also offers additional information. Starting from the Power button on the lower left of the unit and working up, this includes battery charge percentage, available modes (including scientific, degrees, and floating point), firmware version, serial number, and charging status-on/off.

Many visually impaired individuals find that various standard computer and mobile calculators do everything they need. Unfortunately, students do not always have the opportunity to use these types of calculators, especially when being tested. After all, how easy would it be to "stray off the straight and narrow" if the mobile device on your desk had access to text messaging, Google, or WolframAlpha?

Even some basic handheld calculators can perform extremely complex calculations. Consequently, most school districts not only prohibit mobile devices during tests, they also set limits on which handheld calculators can be used, or require the device have a special "test mode" that disables certain types of calculations.

The Orion TI-30XS may be approved as an accessible accommodation for students taking the SAT, ACT, and AP classes. (Parents and teachers: you will need to have this calculator approved as an accommodation for use on assessments. Ask the assessment or test coordinator for assistance with this process.)

The Orion TI-30XS is aimed at upper elementary and middle school students. Likely as not, these students have not yet decided if they might wish to pursue a STEM career. However, having access to the same handheld calculators as their classmates can only help to broaden a sight-impaired student's horizons, options, and opportunities.

The result is enhanced student comprehension and improved math class efficiency. Casio FX-991ES Plus scientific calculators version e has a matrix display, and solving equations has never been easier as this is one of the new functions. Another is random Integers where you specify the range of random integers you want to generate and the FX991ESPLUS will display them. The number of memories has also increased from 7 to 9.

Furthermore, Casio FX 991 ES PLUS has 417 functions that can be used to solve many problems. Our users say they love the fact that the scientific calculator uses two types of power, one solar and the other battery so is ECO-friendly and you are safe to take it into an exam without it failing not to work. Others opinions of the product are that they think that it is one of the best calculators that you can buy. One of the advantages that we are told about is that the result that you get you are able to use the same figure in the next part of the sum, without having to round up numbers or to re-type up the whole digits which can lead to errors.

Also, do not forget the great function of allowing users to use the calculator to work backward, such as in algebraic equations. This can make life so much easier or so our users tell us. The high technical specifications make this the most powerful Scientific at this price point. You can use this calculator from School to University and on to work

It makes no sense that Casio would do this to the US version, especially since an older US Casio calculator, the fx-115ES Plus, has much of the very basic functionality that's lacking in the newer ClassWiz scientific calculator.

RealCalc is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus history, memories, unit conversions and constants. You can choose from a number of display styles and formats. It also supports binary, octal and hexadecimal calculations and has an optional RPN mode. RealCalc is easy to use, but has full help included in the app.

The HP-35 was Hewlett-Packard's first pocket calculator and the world's first scientific pocket calculator:[1] a calculator with trigonometric and exponential functions. It was introduced in 1972.

In about 1970 HP co-founder Bill Hewlett challenged his co-workers to create a "shirt-pocket sized HP-9100". At the time, slide rules were the only practical portable devices for performing trigonometric and exponential functions, as existing pocket calculators could only perform addition, subtraction, multiplication, and division. Introduced at US$395 (equivalent to $2,800 in 2022),[2] like HP's first scientific calculator, the desktop 9100A, it used reverse Polish notation (RPN) rather than what came to be called "algebraic" entry. The "35" in the calculator's name came from the number of keys.

The calculator used a traditional floating decimal display for numbers that could be displayed in that format, but automatically switched to scientific notation for other numbers. The fifteen-digit LED display was capable of displaying a ten-digit mantissa plus its sign and a decimal point and a two-digit exponent plus its sign. The display used a unique form of multiplexing, illuminating a single LED segment at a time rather than a single LED digit, because HP research had shown that this method was perceived by the human eye as brighter for equivalent power. Light-emitting diodes were relatively new at the time and were much dimmer than high-efficiency diodes developed in subsequent decades. ff782bc1db