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Your Ti-Nspire programs are my drug of choice, they are addictive, will enjoy them for rest of my life

Thank you.  I had been hesitating to make the purchase as I had wanted to get the apps for TI Voyage 200; 

but I decided to get the ones for TI-Nspire CAS CX instead, basically because it has more memory available.   

These apps you sell have the potential to become addictive so I most likely will be back for more!  

I think I made the right choice.

So, needless to say, I am very impressed.

Beauty is in the eye of the beholder.  Your programs are my drug of choice.  

I am sure to enjoy them for the remainder of my life.  

They are one of the few things worth buying besides food and a good pair of boots.
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Impressed with Calculus Made Easy for Ti-Nspire

Hi Mike

I was so impressed with CME that I bought AME and PME and they are both first-rate.

I’ll be buying more as they appear.

Your apps have made the Nspire a lot more useful to me than it was – in fact, I’m beginning to like it quite a lot.

Congratulations on the hard work, I suspect your nspire apps will be even more successful than the Ti89 apps.

Best wishes

TiNspire CX : Euler Method (Differential Equations)

When solving a Differential Equation y’=y*(5-y) , y(0)=9 numerically using the Euler Method given stepsize of 0.1 use the Differential Equations made Easy app at www.tinspireapps.com and select Euler Method in the Menu as shown below :

Now you just enter the Differential Equation in the top box and the starting point and the step size in the bottom box as shown below:

(Don’t forget the * between y and (5-y)

The bottom box now shows the step by step solution of the Euler Method. Works correctly for any given Differential Equation.

Alternative to the Euler Method you may also the built-in Runga Kutta RK4 method.

TiNspire CX : Piecewise defined function

To solve problems involving piecewise defined functions with your TiNspire CX CAS use Calculus Made Easy at www.TiNspireApps.com and scroll down to option 9 :

Next, enter the 2 “pieces” of the function in the top box and the start/end point in the 2. box as follows :

Now scroll down to check if the piecewise defined is continuous or not. Here it is since the 2 one-sided limits match at x=2 .

TiNspire CX Limit Solver

Use belows Limit Solver when asked to find a constant for which a limit exists. Ex: What is a in (x^2+x-a) /(x-2) as x approaches 2?

To find the constant a for which the limit exists using the TiNspire CX CAS use Calculus Made Easy at www.TinspireApps.com , select option 6 in the Limits menu :



When entering the above example, we find the Limit to be 5 when the constant a=6 .

TiNspire CX CAS: Nonhomogeneous, Nonlinear Cauchy Euler 3. order Differential Equation

To solve a 3. order Cauchy Euler Differential that is Nonhomogeneous and NonLinear you would use the Differential Equations Made Easy at www.TiNspireApps.com and enter the coefficients of the Differential Equations as follows:

As can be seen, the substitution y=x^n allows us to find the zeros of the homogeneous Differential Equation and its solution below. Now, we are after the nonhomogenous solution which involves find the 4 Wronskians W, W1, W2, W3 using the Variation of Parameter method:

After finding the 3 v_i, their integration allows us to find the final solution

Puuh, that was a lot of work…If you want to skip watch all the steps you might just jump straight to the final solution.

TiNspire CX CAS : Pole Zero Plot

When creating a pretty Pole Zero Plot you will pull out your trusty TiNspire CX CAS , launch the Electrical Engineering Made Easy app (download at www.TiNSpireApps.com) and select option 9 in the menu

and enter the given Transfer Function as follows:

Finally, we head over to tab 1.3 to view the resulting Pole Zero Plot. The Zeros are drawn using O (here z=-6 since that makes the numerator equal to 0) . The Poles are marked using X (here positive and negative 3i as the make the denominator equal to 0).

Pole Zero Plots are a very simple and effective way to display the properties of a Transfer Function.

TiNspire CX CAS: Classify Nodes, Saddle Points in Stability of Non-Linear Systems

Say you have to classify nodes when studying the stability of Non-Linear Systems. Use the Differential Equations Made Easy App at www.TinspireApps.com under menu item 3 E . Enter the given System as follows in the two top boxes:

When plugging the critical points into the Jacobian we are able to compute the EigenValues that allow us to classify the nodes as stable, unstable, saddle point, center or spiral point.


and finally

Very Simple!

TiNSpire CX: Solve System of Differential Equations using LaPlace Transform – Step by Step

Say you have to solve the system of Differential Equations shown in below’s image. Launch the Differential Equations Made Easy app (download at www.TiNspireApps.com) , go to Laplace Transforms in the menu and just type in as shown below:

Scrolling down to view all steps finally shows the correct final answer:

Solving Fractions and Quadratics using the TiNSpire – Step by Step

Say your teacher has some fancy fractions to solve for you and you have a volleyball game , play practice and to prepare for the SAT next Saturday. So you take out your TiNspire CX CAS, launch the STEP BY STEP EQUATION SOLVER app from www.TiNspireApps.com and get a quick lesson on how to solve those fractions…which turns out not too difficult after following the provided steps below:

We select option 5 :

  1. problem:

to get 5/14 . The trick is to multiply the given fractions by the product of their denominators (bottoms) to get a much easier equation to solve.

Here is another one:

and

It always works!

Quadratic equations can also be solved step by step. Here is one:

and

Even equations containing only variables can be solved (for x):

Statistik mit Schritten fuer den TiNspire CX

statistik fuer TiNspire CX
statistik fuer TiNspire CX

Das umfassende Statistik Paket mit schrittweise Loesungen fuer den TiNSpire CX ist jetzt erhaeltlich unter https://www.tinspireapps.com/deutsch/?a=SWLG

Themen wie Mittelwerte, Varianz, Quartile, Perzentile, Erwartungswert, Zufallsvariablen, Wahrscheinlichkeiten, Kombinationen, Permutationen, Regressionem, Statistische Signifikanz Tests, Konfidenzintervalle, Verteilungen, Gesetz der grossen Zahlen, Markoff Ketten, ChiQuadrat Tests, ANOVA, Exponentielles Smoothing, Entscheidungs Tests, Nicht-Parametrische Tests, Normalverteilung und vieles mehr.

Kaum zu glauben alle diese Themen sind in einer handlichen App auf dem TiNspire CX verfuegbar.

Hier ist ein Ueberblick:

mittelwerte, Verteilung, Konfidenzinterval fuer den tinspire cx
mittelwerte, Verteilung, Konfidenzinterval fuer den tinspire cx

und

Wir empfehlen die kostenlose Testversion unter https://www.tinspireapps.com/trials/ zu probieren.