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The nerdy pocket-protector vibe has only grown more fitting as technology has subsumed all of our lives. These days, tech seldom feels aligned with the jocks vs. nerds rivalry common to the pop culture of my childhood. If anything, wearing a calculator watch in 2021 is a gesture rooted in retro style and a specific disconnect from our modern relationship with gadgetry. The proto smartwatch now feels like an antidote to them.

In 1980, less than a decade after getting into the watch game, Casio launched its first calculator watch, the C-80. Given its success, the brand followed up in 1984 with the Databank Telememo CD-40. These watches helped put Casio on the map and sold some six million units within the first five years of its release.

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Functionality for this model is established by Casio's module 3208, and the CA53W-1 could not be much easier to use unless I had child-sized fingers. The screen is sharp and bright, and a single navigation button protruding from the right side of the case allows you to cycle through time, calculator, alarm, a second time zone, and a chronograph.

For this model, the calculator buttons are set on a glass-like plate on the front of the watch. This combination of a glossy black surface beset with several tiny rubberized buttons ensures no shortage of dust collection, but fingerprints were less prevalent than I expected.

A calculator watch is a digital watch with a built-in calculator, usually including buttons on the watch face. Calculator watches were first introduced in the 1970s and continue to be produced, despite falling from their peak popularity during the 1980s. The most dominant brands were the Casio Databank series and Timex.

Another popular calculator watch was the Time Computer Calculator 901, which could perform basic arithmetic functions. The 902 models had additional functions such as percentage calculations. The Time watches carried a high price tag (US$4,000) because they were made of solid gold and operated by a stylus pen owing to the small size of their buttons.[4]

Japanese electronics company Casio produced the widest variety of watches. In the mid-1980s, Casio created the Databank calculator watch, which performed calculator functions and stored appointments, names, addresses, and phone numbers. The calculator watches made by Casio earned much fame due to their appearance in movies and also due to being celebrities' choice during public events.

Mass-produced calculator watches appeared in the early 1980s, with the most being produced in the middle of the decade. Their popularity began to fade in the mid-1990s with the introduction of cheaper mobile phones and PDAs, which could perform the same functions. The calculator watch is now a collector's item, and notable watches such as the Timex watches and some special variants of Casio calculator watches such as the CFX-400 command a high premium in the used market.[4]

An Illinois federal judge on Thursday made another default ruling in an case alleging counterfeiters hiding behind the mask of the internet sold knock-off calculators as genuine Casio Computer Co. Ltd. products.

Judge Thomas Durkin approved a motion for default judgment in favor of Casio, which alleged in a February complaint that e-commerce store operators using marketplace platforms hosted by Alibaba Group Holding Ltd., Amazon.com Inc., DHgate.com, and eBay Inc. were selling to Illinois consumers unauthorized and unlicensed products infringing on a Casio design patent associated with an electronic calculator.

A scientific calculator (must not have unapproved features or capabilities; see list of unapproved calculators and technology) or graphing calculator are recommended; a four-function calculator is allowed but not recommended.

Graphing calculator with statistical capabilities. Nongraphing calculators are permitted if they have the required statistics computational capabilities described in the AP Statistics Course and Exam Description. (effective Fall 2020)

*Graphing calculators with the expected built-in capabilities for AP Calculus are indicated with an asterisk. See the AP Calculus AB and BC Course and Exam Description for details. However, students may bring any calculator on the list to the exam; any model within each series is acceptable. Only approved graphing calculators from the list are permitted for AP Calculus Exams.

If you have a calculator with characters that are one inch or higher, or if your calculator has a raised display that might be visible to other test-takers, you will be seated at the discretion of the test coordinator.

Calculators are not allowed for any other AP Exams, including Computer Science A and Computer Science Principles, unless a student has an approved accommodation for use of a four-function calculator.

This list will be updated as necessary to include new approved calculators. Check this list periodically, and before the administration of the exams, to ensure that students have the most up-to-date information.

* Graphing calculators with the expected built-in capabilities for AP Calculus are indicated with an asterisk. See the AP Calculus AB and BC Course and Exam Description (effective Fall 2020) for details. Only approved graphing calculators from the list are permitted for AP Calculus Exams.

This list only includes approved graphing calculators. There is not an approved list of scientific (nongraphing) calculators. Note that scientific (nongraphing) calculators must not have unapproved features or capabilities.

Proctors are required to check calculators before the exam. Therefore, it is important for each student to have an approved calculator. Calculators may not be shared, and communication between calculators is prohibited during the exam.

The history of Casio calculator watches goes back to 1980 when the brand released the C-80. But Casio was by no means the first brand to release a calculator watch. Pulsar, which was part of the Hamilton Watch Company at the time, introduced the first calculator watches in 1975. Although it took Casio five years to come up with the C-80, it did set the tone for everything that came after. The most famous Casio calculator watch is the CA-53W, which was introduced in 1988. It graced the wrist of Michael J. Fox in Back To The Future Part II and Part III. More recently, chemistry teacher turned drug kingpin Walter White wore one in Breaking Bad.

The CASIO FX-97SG X is an advanced scientific calculator packed with features for math and science. According to the official CASIO website, this calculator model comes with 417 functions and has a 2-line display, ideal for showing intermediate calculation steps.

Overall, the FX-97SG X packs robust math and science functionality into a compact design perfect for students. Its intuitive interface and wide range of features make it a versatile calculator for the classroom and beyond.

Turning On/Off - To turn on the FX-97SG X, press the ON/OFF button. To turn off, press ON/OFF again and confirm by pressing EXE. The calculator will automatically turn off after about 6 minutes of inactivity.

The CASIO FX-97SG X calculator has several advanced functions that go beyond basic arithmetic and trigonometry. These include statistical, spreadsheet, QR code scanning, and equation solving capabilities.

The FX-97SG X can perform various statistical calculations for analyzing data sets. You can enter data points and have the calculator determine the mean, median, standard deviation, linear regression, and more. The statistics mode (STAT) lets you choose the type of graph to represent the data as well. This allows students to visualize statistical information (Casio FX-97SG X Manual).

The FX-97SG X also includes hypothesis testing functions for checking statistical significance. Common tests like z-tests, t-tests, F-tests, 2 tests and ANOVA are built in. Just input your data and variables to have the calculator run the test and output the results.

A unique capability of the FX-97SG X is the ability to scan QR codes using the built-in camera. You can scan QR codes that contain mathematical expressions to directly input them into the calculator. This allows for quick transfer of longer expressions without tediously typing them in. You can also generate QR codes for expressions to share with others.

The equation solving mode lets you input linear equations, quadratic equations, simultaneous equations, and more. It will then algebraically solve for the unknown variables. You simply type in the equations using standard math notation, press the solve button, and the calculator outputs the step-by-step working and solutions. This assists students in understanding how to manually solve equations.

The CASIO FX-97SG X has many useful features and functions that can be utilized more effectively with some handy tips and tricks. Here are some to help you get the most out of your scientific calculator:

Yes, the FX-97SG X is approved for exams like PSLE, O Levels, and A Levels in Singapore. Be sure to check your exam's specific calculator policies, as some exams prohibit certain features like the spreadsheet function. The FX-97SG X meets exam requirements due to its lack of graphic or communication capabilities. See the full list of approved calculators.

The FX-97SG X uses one LR44 button cell battery. The battery can last for up to 2 years with daily use. The actual battery life depends on how frequently you use the calculator. To conserve battery, use the auto power off function. Refer to the user manual for battery specifications.

The Victor 940 advanced scientific calculator is perfect for students in General Math, Algebra 1 & 2, Science, Statistics, Trigonometry, and Geometry. 2-line display shows entries on the top line and results on the bottom. Other functions include: quadratic and cubic equations, coordinate conversion, trigonometric functions in degrees and radians, fractions, reciprocals, factorials, basic scientific functions, and more. Includes a clear protective hard shell case. 17dc91bb1f