text: which is the best type of calculator to use for math? i have heard that the texas instruments are good calculators. which is better: ti-83+, ti-84+, ti-89+, or other.  i need it for graphing and other stuff.  (algebra 2) i'd say if you're in algebra 2, the ti-83 plus would be sufficient, however if you plan on going on to harder math classes like calc and trig, go ahead and get the ti-84 plus