Texas Instruments TI-85 Advanced Graphing Scientific Calculator

!±8± Texas Instruments TI-85 Advanced Graphing Scientific Calculator

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Designed with students of higher math in mind, the TI-85 is a scientific calculator that offers a wealth of features and functions that will take you smoothly from pre-algebra all the way through college calculus. Its data I/O port and unit-to-unit link (compatible with all TI-85 and TI-86 models) allow you to easily transfer your final graphs and equations among systems, while the 28K RAM and customizable menu keys provide quick access to necessary programming functions. As you advance through classes, simply reprogram the keys to keep up with your new textbook chapters.

Functions are widely varied, and include the ability to solve for systems-of-equations, polynomial-root, or any variable in an equation. Graphing possibilities include parametric equations, polar equations, and solutions to differential equations. Statistical analysis runs the gamut from linear, logarithmic, exponential and power to quadratic polynomial, cubic polynomial, and quartic polynomial regressions. In addition, data is viewable as strings, pictures, or vectors. Simultaneous separate graph capability and 15 interactive zoom features are also included.

The display is a generous eight lines long and 21 characters wide; this unit is powered by four AAA batteries, with a dependable long-life lithium ion providing memory backup. Texas Instruments includes a one-year warranty covering parts and service.

What's in the Box
TI-85, lithium backup battery, link cable, guidebook with warranty card, and impact-resistant slide case; AAA batteries not included

• Texas Instruments TI-83 Plus Graphing Calculator

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Elemental Analysis: Frequently Asked Questions

!±8± Elemental Analysis: Frequently Asked Questions

Elemental analysis is the process of examining the elemental and/or isotopic composition of a solid, liquid, or gas. In most cases, it supports a larger endeavor such as environmental monitoring, food testing, or crime scene investigation. Useful to any entity that depends on the analysis of elements, its applications and methods of implementation are numerous. For a basic understanding of these applications and implementations, the answers below can help.

How many applications does element analysis have?

Its applications are categorized under the following disciplines: environmental monitoring, food safety and testing, forensic examination, material science, safety and security, pharmaceutical research, biotech research, and life science. Most of these disciplines contain multiple sub disciplines.

How can element analysis help companies remain within emissions limits?

It helps companies remain within emissions limits by measuring emissions and recording the measurements so an inspector can read them at any time. Carbon dioxide and carbon monoxide analyzers that measure emissions at the exhaust stack are examples of equipment help companies remain within emissions limits.

To what degree is element analysis used to investigate crime scenes?

Although TV dramas make it seem as if all crimes are investigated using lab technology, its use ultimately depends on the profile of a crime, the technology available to a state or federal crime lab, and the quality of the crime scene. When a crime is regarded as "serious," the crime scene is preserved, and the right technology is available, the process is usually performed.

It is sensible to buy used analytical equipment when starting a new lab?

Used scientific instruments and equipment are frequently used to start a new lab or upgrade the technology of an existing one. Although used products are commonly regarded as second rate, analytical devices that have been refurbished or are almost new are readily available. As long as you buy them from a reputable seller, used analytical devices are usually a smart purchase for starting a new lab.

Is it better to conduct element analysis in house instead of outsourcing?

Depending on your equipment budget, payroll budget, workspace, and the frequency of your analytical needs, it may be better to analyze elements in house. For quality and timeliness, an independent lab can perform as well as an in house lab. Therefore, the decision to outsource or stay in house is often based on finances.

What is the best approach for buying new equipment?

Buying new equipment should involve at least four considerations: how the equipment will integrate with existing equipment, whether it will require changes to a building's electrical system, how it will affect those who use it, and how it will affect the larger work environment. When considering these things, many companies hire a consultant that specializes in their area of business (e.g. hospital care, power generation, environmental monitoring, etc.).

Conclusion

Elemental analysis is an important aspect of producing products and rendering services that improve the world while preserving nature. To learn more about its applications and implementation, contact a seller of analytical equipment.

Elemental Analysis: Frequently Asked Questions

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Tutorial - Game Boy on your Calculator

!±8± Tutorial - Game Boy on your Calculator

My first Graphing Calculator video and tutorial. Expect more to come! hw3patch download: www.tigen.org gb68k download: www.ticalc.org SuperStart download: www.ticalc.org (transfer it to the main file of your calc like the other programs). -If you are getting out of memory errors, you must install superstart to play. If you continue to get out of memory errors, clear your RAM by hold left, right, 2nd, and on. -MAKE SURE to archive everything you put on your calculator or else you will NOT have enough RAM to run gb68k. -The command line for cartconvert should read like this: "[directory of cartconvert]" romname.gb name -Calculator memory is limited (especially on certain models) so don't expect to fit a dozen roms on it. -If you have homemade programs on your calc that are unarchived, be sure to archive them before installing as GB68k can cause RAM resetting crashes. -This emulator is not compatible with all ROMs. -Only the calculators with miniusb ports come packaged with the cable shown in the video. For other calculators (ie regular TI-89) the cable can be purchased here: education.ti.com -Any other questions post in comments section. Enjoy! (For all those asking, yes, there is now a GB emu for the TI-83/84. This video is not about that emu.)

Tutorial - Game Boy on your Calculator

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