Thanks, I just got mine (a TI-84plus) today and...wow, this thing is nowhere near what I used to call a calculator...it's way out there amongst the stars...Thanks for the video...
Sherry Cassidy I can give you the best advice you'll ever get..................... practice and have fun with it. Don't get discouraged or feel that you're in over you're head you can do it. Thank me later.
Although I am watching this video later than its release (way later lol) I would like to compliment you on your professionalism and organization while making this presentation. I was having issues with my calculator and you helped me so much. Thank you for putting together such a well informed presentation.
Mr. Floersch, First let me say that these are the best instructions that I have every came across sense purchasing my TI 84. Again thank you. However is there anyway that you can have these instructions put in word to print out or a link to your website that I able to print out the step-by-step instructions. It's very hard to keep up with your video when trying to learn these steps as a beginner. Thanks
Thank you. Unfortunately I don't have the slides or instructions. However, what is nice about a video is you can pause and rewind and rewatch it as many times as you need to. Sorry and thanks for the kudos.
This is well put together, professionally displayed and very clear. It is, however, VERY fast and for kinesthetic learners who are trying to follow along to actually learn how to use it ourselves; it is too fast. I did try to keep pushing pause on the video to catch up, which made an already frustrating process even more tedious and impossible to follow. I was still trying to find the buttons you'd said to push and you were on the next operation.
Juan Carlos Capetillo I don't think he had us put the a^2 +b^2 = c^2 to use as a solver. He was showing us how to save equations in our calculator so we can reference them on a test, if I'm correct. That was simply to help us and for a quick reference, not to use as an equation solver on our calculator. Someone please correct me if I am wrong about this. I could definitely use this function if it is a way to solve equations!
Would you happen to know why my Ti 84 and Ti 89 would return a Domain error message when trying to use the ExpReg function under the Stat Calc menu when I have negative numbers in L2? The L1 entries are (0, 1, 2, 3, 4) and L2 (-35, -245, -1715, -12005, -84035). The equation for this curve is (-35)(7)^x This equation fits the scatter plot perfectly. But the calculators won't find the equation on its own using ExpReg. I hope someone can tell me why.
I have an idea, but I do not know for sure. It could be that the routine that does the exp regression may use some transformation involving logarithms. As logs have a domain restricted to positive numbers, perhaps this is why you are getting a domain error.
Murray Melander As it turns out, the domain of your specific data is not strictly positive, as 0 is not a positive number. It may be transforming the numbers in either or both of your lists with logarithms and since logs of 0 or negatives are undefined that may be the source of the error. Sorry about the confusion. I don't know exactly how TI programmed the routine for this, but that is my best guess.
