When a handheld is in Press-to-Test mode, students cannot access pre-existing folders, documents, and Scratchpad data. Students using the TI-Nspire™ CX-C handhelds cannot access the Chinese-English dictionary.
Press-to-Test temporarily disables documents and some features of handheld applications. The Press-to-Test feature is available on the following TI-Nspire™ handhelds: After the exam, these documents and features can be easily restored for classroom use. TI-Nspire™ and TI-Nspire™ CAS handhelds with OS version 1.3 or higher. TI-Nspire™ CX and TI-Nspire™ CX CAS handhelds with OS version 3.0 or higher. TI-Nspire™ CX-C and TI-Nspire™ CX-C CAS handhelds with OS version 3.1 or higher. TI-Nspire™ CM-C and TI-Nspire™ CM-C CAS handhelds with OS version 3.1 or higher. Press-to-Test is also available on the TI-84 and when using a TI-Nspire™ handheld in TI-84 mode. Out if your state allows TI-Nspire™ technology, see the State/Province Information website at: education.ti.com/go/testprep Note: Some states only permit the use of the TI-Nspire™ in TI-84 mode. On a Touchpad, press and hold down the d c keys. On a Clickpad: Press and hold down the d c w keys. Do not release keys until the Press-to-Test screen is displayed.īy default, all restrictions are selected. You must change the restriction settings before you enter Press-to-Test. You cannot change the settings after you enter Press-to-Test unless you exit Press-to-Test and enable it again. Select additional restrictions or clear restrictions as needed. #COMPLEX POLY ROOTS TI NSPIRE POLYROOTS PLUS#.#COMPLEX POLY ROOTS TI NSPIRE POLYROOTS LICENSE#.#COMPLEX POLY ROOTS TI NSPIRE POLYROOTS SOFTWARE#.Here's to a Happy and Safe New Years Celebration and to a kick ass 2013! To my readers, I get such pleasure from writing on this blog, and fully appreciate each and every one of you. (Where N is the set of natural numbers (counting numbers). The set can include or not include zero, depending in the definition used. One great thing about Casio graphing calculators is that you can make mini-programs.
On the current generation (fx-9860g II, Prizm, this includes the older models), within the RUN/MAT mode set the calculator in Linear Input mode. Type each command as you would entering commands in Program mode. I will post screen shots from a Casio Prizm to demonstrate the search for solutions.įor each case, I will present base cases (A = 0, B = 0, and A = B = 0). Then solving for A would yield A = √(X³ - B²). The integer function returns the integer part of a number. Example: int(π) = 3.īelow is the instructions on how I found possible solutions on the Casio Prizm. Note I am looking for integer solutions, ignoring all solutions that were not natural numbers.įor the following let a, b, and n ∈ N. That is all variables are natural numbers (the counting numbers). Note that the set of natural numbers may or may not include 0. This blog entry is all about trying to find solutions to equations - in an analytic manner. The only way that 1/(b - 1) ∈ N is when b = 2. Let's start with subtracting a*b from both sides: What if we allow the possibility that a ≠ b? The only solution to a + b = a * b is a = b = 2.
This lead me to believe that b is a multiple of a. Not good for searching for solutions such that a,b ∈ N.Ī = (b ± √(b^2 - 4b^2))/2 = (b ± i b √3)/2 = b * (1 ± i √3)/2 which is not a natural number. If a = 6, then a^2 - 4a = 12, not a perfect square. If a = 8, then a^2 - 4a = 32, not a perfect square. If a = 10, then a^2 - 4a = 60, not a perfect square.
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