Originally posted by: dancingpig41
Bah.. HP 48GX all the way. Ti-89 might nicer to look at with all those fancy menus, but the HP is quicker to use.
Jason
Originally posted by: worms
If, for any reason, you plan to spend more than $7 on a calculator, the TI-89 is the only calculator on the market worth considering. <-- (note the period)
After many years with TI-86's, 83's, 81's, colorful Casio's, and even HP's (which have to be used upside down!), Trust me when I tell you they might as well be abacuses compared to the 89.
You are just wrong with the above statements. IMO the HP49 is WAY better than anything that TI makes, including the TI-92 because of three letters: RPN. Once you've gone RPN you'll never go back. And if you really think the HP49 is an abacus, there are thousands of people who will disagree with you, HP is the standard of the scientific and engineering communities the same way TI owns grade school. I could say something like "oh, Mr. expert genius ninth grader thinks he knows something about calculators" but I won't because I don't want to start a holy war. Just use whatever you like, but don't discount something just because you are unfamiliar with it.
Originally posted by: worms
CrazySharks:Although the HP is significantly more expensive, it can perform all of the functions of a TI so long as you hold it up to a mirror. RPN? Sheesh! Why do you want to reverse engineer an equation and try to figure out the correct way to enter it into the calculator? Just type it into your TI exactly as it reads on paper.
Originally posted by: Fongboy
You are just wrong with the above statements. IMO the HP49 is WAY better than anything that TI makes, including the TI-92 because of three letters: RPN. Once you've gone RPN you'll never go back. And if you really think the HP49 is an abacus, there are thousands of people who will disagree with you, HP is the standard of the scientific and engineering communities the same way TI owns grade school. I could say something like "oh, Mr. expert genius ninth grader thinks he knows something about calculators" but I won't because I don't want to start a holy war. Just use whatever you like, but don't discount something just because you are unfamiliar with it.
TI89's can also do RPN with a downloaded program... search around http://www.ticalc.org for it. The biggest advantage of the TI89 over the HP calcs is the huge amount of software freely available for the TI89. When I was taking my electrical engineering classes, I downloaded a program that was very similar to PSPICE (circuit analysis program). I just inputted a circuit, and it gave me all of the currents, voltages at any element with lettered variables still in place.... and also i(t)= or v(t)= formulas for currents and voltages for AC circuits... such a crazy program... and so much more I never learned to use (if you're wondering... the program is called Symbulator). Needless to say, I totally owned on the final -- which just so happened to be a multiple choice test where we didn't have to show work.... hehehe ;-) There were also other programs that I found that did laplace transforms and inverse laplace transforms... very useful for EE classes on systems and signals. But yah... if you plan on taking advanced calculus or engineering courses... this calculator will be your hero! =)
For those of you capping on RPN... don't knock it until you've tried it. =) Even though it's a little ackward to learn at first, you'll start to see how useful it is when you have extremely complex fractions in fractions in fractions, or anything else with a lot of parenthesis. When you enter it in the regular way you have to balance the parenthesis and you can easily screw it up and misplace one and screw up your whole equation. When you do things the RPN way (postfix notation for you CS people ;-) ) the parenthesis are automatically taken care of.... it's in the nature of the postfix notation... well... that's not entirely true... it's not automatic... it's just that your brain is now acting as a buffer to hold the parenthesis... but it's so natural that you don't realize it. Kinda cool for very complex equations.
Originally posted by: dancingpig41
Bah.. HP 48GX all the way. Ti-89 might nicer to look at with all those fancy menus, but the HP is quicker to use.
Jason