1996 - 2016
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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Nspire CX CAS Graphing Calculator
The sleek TI-Nspire CX handheld is the thinnest and lightest TI graphing calculator model to date Overlay and color-code math and science concepts on digital images or your own photos The installed TI-Nspire Rechargeable Battery is expected to last up to two weeks of normal use on a single charge Color-code equations, objects, points and lines on the full-color, backlit display Graph and rotate (manually and automatically) 3D functions, One-year limited warranty. Standardized testing organizations have approved the TI-Nspire CX CAS handheld for SAT, PSAT/NMSQT, AP and Praxis high-stakes exams. It is also approved for some state exams.
Prime Graphing Calculator
HP-Prime™ is a feature-rich calculating experience with familiar HP keypad and a large 3.5-inch diagonal, multi-touch full color display. Explore math concepts with Dynamic Geometry, CAS, Advanced Graphing, and spreadsheet applications. HP-Prime™ employs familiar RPN, Algebraic and textbook entry system logic. HP-Prime™ comes with an integrated tool suite: HP Equation Writer supports multiple linear and non-linear equation solving. HP Solve is time-saving application that allows you to store equations and solve for variables. Easily switch between symbolic, graphical, and numerical table views with dedicated buttons. Instructors can turn the calculator into a testing tool with Test-Mode configuration that makes only pre-approved functions available.
Fx-cg20 Graphic Calculator
Picture Plot enables users to create their own graphs over pictures displayed on the color LCD. The fx-CG10/20 comes with 55 types of color pictures that users can create graphs over, such as a picture of the parabola of jets from a water fountain and an image sequence of a clock’s pendulum movement. Users can perform regression calculations from the completed graphs to enhance their understanding of math functions. Expanded matrix allows addition of vector processing features. Makes learning exactly according to your textbook possible. Addition of population standard deviation, population variance and new random commands.