BA II Plus™ financial calculator app Combine the capabilities of the best-selling financial calculator from Texas Instruments — the BA II Plus™ calculator — with the powerful functionality of the BA II Plus™ Professional calculator and you get an app for iOS devices that is ideally suited for business majors and finance professionals. Setting Up Your TI-BA II Plus The following is a list of the basic preliminary set up features of your TI BA II Plus. BA II PLUS PROFESSIONAL Calculator Guidebook English 01 June 2004, Rev8Mú9+ %q[Ç ê 7wY©5_ q ii. I’m not putting in any of the parentheses. Now, if we put in 3 plus 5 times 4…so this is what we’re putting in. Texas Instruments makes no warranty, either express or implied, including but not limited to any implied warranties of merchantability So, 3 plus 5 is 8, I hit the times, and then you’ll see 8 … You should understand these keystrokes before you begin work on statistical or TVM functions. Please note that your calculator’s sign convention requires that one of the TVM inputs ([PV], [FV], or [PMT]) be a negative number. A. So, if I just put in 3 plus 5, when I hit times, that also does an equal function in chain mode. Important Information.