Education Technology

Solution 13820: Differences Between OS v3.10 and Previous Operating Systems When Solving Inequalities Using the TI-89 Titanium and Voyage™ 200.

What are the differences between OS v3.10 and previous operating systems when solving inequalities using the TI-89 Titanium or Voyage 200?

OS v3.10 for the TI-89 Titanium and Voyage 200 increases the ability of the calculator's Computer Algebra System (CAS) to display more accurate results for inequalities involving polynomials and rational expressions. The table below displays the added functionality of OS v3.10 when compared to previous operating systems:

Input Previous OS Versions OS v3.10
solve(x2 > 1,x) x2 > 1 x < -1 or x > 1
solve((1/x2) > 1,x) 1/x2 > 1 x ¹ 0 and -1 < x < 1
solve(Ö(x) > -1,x) Ö(x) > -1 x ³ 0

Please see the TI-89 Titanium and Voyage 200 guidebooks for additional information.