difference between TINspire and TINspire CAS  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: difference between TINspire and TINspire CAS (/thread120344.html) 
difference between TINspire and TINspire CAS  Don Shepherd  08042007 The CAS version of this calc does these additional things:
It may do more. This is from a cursory comparison of the reference guides for the two products.
Re: difference between TINspire and TINspire CAS  Namir  08042007 Don, Thanks for the list. You gave me several good reasons to only buy the CAS version.
Namir
Re: difference between TINspire and TINspire CAS  Don Shepherd  08042007 You're welcome, Namir.
If you don't care about TI84+ compatibility, there is no reason to buy the nSpire nonCAS.
Re: difference between TINspire and TINspire CAS  Namir  08042007 Don, I thought the nonCAS TInspire did not do symbolic amth, but did solve systems of linear equations, find zeros of functions, and find minima/maxima of functions. I feel it's quite the scaled down version. Sure it has the cool interface but ... I found out today that the tables have spreadsheetlike features where you can calculate the value of a cell using values from other cells. And then, you can copy and paste that equation onto cells below. the TInspire will adjust cell references ... in a manner similar to Excel. I have also realized that it's worth it to read through the manual and learn details about operating the calculator. Namir
Edited: 4 Aug 2007, 2:54 p.m.
Re: difference between TINspire and TINspire CAS  Don Shepherd  08042007 Namir, the nonCAS version does not solve systems of equations like the CAS version does. The nonCAS version does have the RREF function, so I guess that could be used to solve a system of equations if you translate the coefficients to the matrix. But the CAS version has specific templates for solving systems of equations. I have not used them (don't have the CAS version yet), but I would imagine you just type your equations in asis and tell it to find the values of your variables. To find zeroes of a function, or maxima or minima, on the nonCAS version I think you have to graph the equation on the geometry screen and then observe where the function crosses the xaxis (for zeroes), and for maxima and minima you do a Trace near that point on the graph and when you hit the maximum point on the curve a M is displayed next to the graph, and when you hit the minimum point a lowercase m is displayed (there are no CALC...MAX...MIN functions like on the TI83 series, unfortunately). On the CAS version, there are specific functions for fmin, fmax, and zeroes, and I imagine you don't even need the graph for those, you just type in the equation and specify an interval and it gives you the answer. You are right, the spreadsheet function is nicely integrated into the rest of the system, even to the point that it will populate a column with values while you drag part of a graph, then use the generated values in the column for a separate scatterplot. Very nicely done.
I'm going to get the CAS version when it is available. At the conference I went to last month they estimated October availability for the CAS version, although it seems some companies are offering it now.
correction to last post  Don Shepherd  08042007 Namir, you don't do the Trace function (on the nonCAS version) to find zeroes, minima, and maxima. You create a point on the curve (point on function), drag it along the curve and when it gets to the maximum, minimum, or zero point, a M, m, or Z appears (correspondingly). Kind of funky, but it works. Personally, I'll use the real functions of the CAS version instead of monkeying around dragging points on a graph.
Link to order the TINspire  Namir  08052007 Don, Thanks for the clarification of the nonCAS version. I like to have functions that work on teh CAS. I did play with the fmin and nSolve functions. Try this link to order a TInspire (both versions and their software).
Namir Edited: 5 Aug 2007, 12:45 a.m.
Re: Link to order the TINspire  Don Shepherd  08052007 Thanks Namir. I see the cost is $217 for the CAS handheld and the Windows software, and $137 for just the handheld. At the conference I attended, sponsored by TI, each attendee got a nonCAS handheld and Windows software, free. I would definitely want the Windows software because it is much easier to develop *apps* for these calcs using the PC and mouse, and download to the unit.
I wrote the regional TI rep about getting the CAS version from TI, as a teacher. We'll see.
