- (June 06, 2005) I know I say experience for fours days (I have had my own for four days), but I have used the calculator for about a year, as I have used my friend's. For a few years, I had the TI-86, and for graphing purposes and playing games of course, this was all that I needed to do. But when I went into Calculus, graphing alone was not enough. The TI-89 Titanium performs integrals and derivatives, and with Calculus Tool (program that you can download from the TI website) you can even do implicit differentiation. Also, with another download it is possible to do volumes by disks and washers. Now that we have put some very helpful calculus function behind, it is a very helpful physics and e
- (February 28, 2005) After using a TI-83 Plus calculator for the last 5 years, I decided to upgrade to the TI-89 Titanium. This calculator is unbelievable in its features and power. First of all, it is more suited for advanced math, such as calculus and beyond. If you are a student in a class below calculus or don't do any work that involves such advanced math, then save your money and buy a TI-84 instead. This calculator can also run programs in its Flash memory, which can be downloaded from the TI website. A USB cable is included standard. TI has made the newly designed sliding cover much more secure than the old TI design (TI-83 plus, TI-86, TI-89 regular), whose sliding cover was not very secure and b
- (January 05, 2005) I bought this for my son, who needed it for 8th grade Math. It's a good machine, easy to use, but I wish I'd spent a bit more for the Silver edition, with it's greater memory. Setup on Win XP was a breeze, taking no more than 2 minutes to set-up link to computer, upgrade OS and download & install a few games. But with the Win2K computer, we're still fighting, and the TI site is down for maintenance, so not much help! But I'm sure we'll work it out. I certainly have no regrets about buying this. Wish they had them around when I was in school!
- (07/03/2013) I have received one of the Aurora's DT210M calculators and. Barely works. The solar part leaves a To to be desired.. Would not recommend you waste your money on this one
- (06/18/2013) blue tooth connectivity and can function as a calculator. This is a must have for all auditors
- (04/23/2013) I have been using a hp 32s rpn calculator for 22 years. Now I am stuck running this (35s) replacement, and it is a nightmare. Some genius desided to move all the buttons around, and worse yet the 35s no longer has the polar/recatngular convertion funtion that I used on a daily basis. If you never used a previous version this is probably an ok calculator