Hi, this is Tom Reardon - math teacher from Ohio to show you what is new with TI-Nspire CX handheld and software version 4.2.
Here we're going to look at how you can access math actions easily.
Based upon what you type, you may be prompted to graph an equation, solve an equation, and so on.
For example, here i am on a calculator page and i just type this expression. I'm going to right click, ctrl menu, and i'm prompted with what possible math actions ic an do with this expression. The only one is to find the roots of the polynomial so will say okay, and then press enter. And it did it for me. Here i'm in a notes page and i created a math box with this expression. Now i'll right click in the math box, and again the math action is tot find the root of the polynomial, i say okay, press enter, and there it is.
I'm back in a calculator page and i just typed 2x+3y= 6 trl menu, right click and it says that i can graph it so i'm gonna say, okay, graph it, and it does. Immediately your relation is graphed, splitting the screen. Similarly, i typed x-y^2 and again i'm going to right click on that. Select graph, and it graphs it on the same pair of axis. I can even find the points of intersection between these two relations.
So menu, geometry, points and lines, intersection points, between that relation and that relation.
In summary, what we've been able to do with functions quickly and easily can now be done with relations. Enjoy!
Graph and calculate in seconds with the TI-Nspire software!