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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: PQ Formel und Mitternachts (ABC) Formel

Mit dem TiNSpire kann man die PQ Formel und die Mitternachts (ABC) Formel schrittweise loesen. Mittels der TiNspire APP “Algebra Leicht Gemacht” (download https://www.tinspireapps.com/deutsch/?a=ALGLG )

Diese beiden Formeln erlauben es quadratische Gleichungen zu loesen wie etwa x2+6x+8 = 0 . Hier ist ein Beispiel mit der APP.

Zuerst waehle die Option im Menu:

Gebe die Gleichung ein und schon sieht man die Schritte unten im Fenster.

Bis die finale Loesung unten gefunden ist.

Die Mitternachtsformel kann man auf die gleiche Weise loesen:

Eingabe der Gleichung wie unten gezeigt und die Loesung ist unten

So einfach ist Algebra ūüėČ

Tinspire: Friedmann and other Nonparametric Tests – Step by Step

Performing Nonparametric Statistics Test can easily be performed – step by step – using the TiNspire CX calculator. Check out tests such as Wilcoxon, Wallis-Kruskal and the signed Rank Test at https://tinspireapps.com/blog/perform-non-parametric-tests-such-wilcoxon-kruskal-or-signed-rank-on-the-ti-nspire/

Another example is the Friedmann Test, we will use the data of a wine test at https://www.real-statistics.com/anova-repeated-measures/friedman-test/
Ho: No wine preference vs Ha: some wine preference (white, red or rose) . Ranking the wine taste results as shown below we obtain a Test Statistic of 1.79 which results in a p-value of 0.408267 indicating no significant wine preference.

Here is the same Friedmann Test performed using the TiNspire’s Statistics Made Easy app at https://www.TiNspireapps.com/?a=SPME . First we enter the wine taste data as 3 rows, the ranks are shown to the right accounting for ties as well.

Next , we compute the sum of ranks and their averages.

Now, squaring the ranks and adding them yields 1749.5. The Test Statistics uses that, the number of tasters and the number wines and comes out to be 1.79167

Using the Chi Squared Distribution yields the p-value of 0.40827 which is not below 5% and we thus fail to reject our above stated Null-Hypotheses Ho :

TiNspire : Mathematics Economics Solver

Solve Mathematical Economics Problems using the Ti-NSpire Step by Step, that includes: Math Topics in Economics, Computational Economics, Algebra, Complex Numbers, Exponential and Logarithmic Functions, Calculus, Optimization, Differential and Difference Equations, Matrices and Vectors.

Specifically, find Margin of Profit Marginal Revenue Break Even Point R=C Demand Analysis Continuous Income Stream Price Elasticity Consumer Surplus Producer Surplus Cobb-Douglas Prod. Gini Coefficient Simplex Algorithm Fiscal Multiplier Average Tax Rate Marginal Tax Rate Price Index Real GDP – Expenditure Approach Real GDP – Income Approach GDP Deflator: Nominal GDP to Real GDP Compute Labor Rate Nominal & Real Interest Rate Unemployment Rate and plenty more

TiNspire – Number Theory Solver – Step by Step

Solve any Number Theory problems – Step by Step – using the Number Theory Made Easy app at www.TiNspireApps.com

Watch this Video to see how it can solve all number theory problems:

Solve Prime Numbers, Euclidean Algorithm, Theorems by Collatz, Bezout, Fermat, Euler, Wilson, Law Of Reciprocity, Chinese Remainder etc Perform Modular Arithmetic at all levels, Find GCD, LCM, Sigma Notation, Proof by Induction, Solve Diophantine Equations and any other equations, solve 2×2 and 3×3 system of equations, Solve Arithmetic and Geometric Sequences, Complex Numbers, Quadratic Equations, Complete the Square, Polynomials , Perform Polynomial and Synthetic Division, Rational Zero Theorem, Solve Combinatorics problems involving permutations and combinations. Game Theory , Prisoners Dilemma. All problems can be solved STEP BY STEP

Here is a listing of the app functionality:

  Theorems & Conjectures
   Goldbach Conjecture
   Collatz Conjecture
   Twin Prime Conjecture
   Dirichlet’s Box Principle
   Euclid: Infinitely many primes.
   Prime Number Theorem
   Euler’s Theorem
   Fermat’s Little Theorem
   Fermat’s Last Theorem
   Wilson’s Theorem
   Chinese Remainder Theorem
   Law of Quadratic Reciprocity
   Bezout Theorem
   Primes
   Find Prime-Factorization
   List Primes between A and B
   Count Primes between A and B
   Find Prime greater/less than A
   Prime Checker
   Coprime Checker
   Euler’s Phi(n)-function
   Find GCD & LCM
   Euclidean Algorithm finds GCD
   Extended Euclidean Algorithm
   Bezout Theorem
   Perfect Numbers (Euclid-Euler Theorem)
   Mersenne Numbers
   Amicable Numbers
       Modular Arithmetic
       Compute a mod m
       Create table mod m
       Compute a+b
       Compute a^n mod m
       Find Inverse of a mod m
       Find Order of a mod m
       Primitive Root mod m
       Solve ax=b mod m
       Solve x^2=a mod m
       Solve ax^2+bx+c=0 mod m
       Legendre Symbol
       Law of Quadratic Reciprocity
   
     Integers
     Factor
     Expand/Distribute
     Find GCD & LCM
     List Divisors of N
     Sigma √鬣-Notation
     Divisibility Rules
     Proof By Induction (Sums)
     Proof By Induction (Products)
    
    
       Diophantine Equations
       Count Integers given Range given N
       Count Integers divisble by N and/or M
       Integer Solutions to 1 Eqn. with 2 Variables
       Integer Solutions to 1 Eqn. with 3 Variables
       Try: Non-Integer Solutions to 1 Equation
   
       
     Algebra
     Solve any Equation or Inequality
     Solve 2×2 system – Step by Step
     Solve 3×3 system – Step by Step
     Simplify & Evaluate
     Powers
     Find Common Denominator
     Find Proper Fractions
     Solve Proportion (Ratio) Problems
     Absolute and Percent Change
    
 
          Logic
          Read Truth Tables
          Read Proposition Laws
          Read Conditional
          Read BiConditional
          Read Set Theory: 10 Facts
          Read Set Theory: 9 Laws
    
    
       Polynomials & Sequences
       All-in-one-Polynomial Explorer
       Find Degree
       Find Roots
       Polynomial Division & Remainder
       Synthetic Division
       Explicit Sequence & Partial Sum
       Recursive Sequence & Partial Sum
       Sequence Formula Finder
       Geometric Sequence & Series
       Arithmetic Sequence
     
    
          Quadratic Equations & Complex Numbers
          Do the Quadratic Equation
          Complete the Square
          Complete the Square to find Zeros
          Complete the Square to find Vertex
          One Complex Number :  All-in-one-Explorer
          Two Complex Numbers : All-in-one-Explorer
     
    
           Combinatorics
           n1*n2*n3*.. = Multiplication Principle
           n! = Number of Rearrangements
           Compute n!*m!
           nPr = Number of ways to rearrange r given n
           nCr = Number of ways to pick r given n
    
         Game Theory
         Read Introduction & Applications
         Read Symmetric vs Non-Symmetric Games
         Read Cooperative vs Non-Cooperative Games
         Read Zero-Sum Games
         Read Simultaneous vs Non-Simultaneous            Games
         Read Symmetric vs Non-Symmetric Games
         Read Prisoners Dilemma
         Read Strictly Determined Games
         Read Perfect vs Imperfect Information

TiNspire: Block Matrix Multiplication – Step by Step

Block Matrix Multiplication A*B can be achieved – Step by Step – using the Matrix Made Easy app at www.TiNspireApps.com as follows:

Select the Block Matrix Multiplication in the MENU :

Next enter Matrices A, B and the dimensions of the 2 top left Matrices A11 and B11 which determines how A and B are partitioned:

Continue scrolling down to view the partitioned Matrices A11,A12,A21,A22 and B11,B12,B21,B22 and their multiplications.

Putting together the partial results we finally find the Multiplication Matrix result A*B :

Tinspire CX CAS: Find Volume via Shell Method about axis parallel to y-axis

Using Shell Method for x axis : Rotate the area bounded by y=10-5x, y=0, x = 0 about the x=-1 axis. Luckily, Calculus Made Easy for the Tinspire CX CAS solved this problem instantly, watch below:

Select option R in the menu:

Enter the function, interval and axis of rotation as shown below, the box below shows the setup and solution.

After integrating , the final answer appears:

Algebra – Schritt fuer Schritt – mit dem TiNspire CX

In diesem Video kann man in Detail sehen wie man typische Algebra Aufgaben Schritt fuer Schritt loesen kann. Wir loesen einen Uebungszettel mit 6 Aufgaben ueber Quadratische Gleichungen, Diskriminanten, Scheitelpunkte, Quadratische Ergaenzung, Umschreiben von Exponential und Logarithmus Formen sowie das Loesen von Exponentiellem Bevoelkerungswachstum und Exponential Gleichungen.

Man kann die detaillierten Loesungen in diesem Youtube Video sehen: https://www.youtube.com/watch?v=zETTiyGk2VQ

Aehnliche Schrittweise Loesungen mit dem TiNspire gibt es natuerlich auch in Analysis, Geometrie, Statistik, Chemie, Physik, Finanzmathematik und Wirtschaftsmathematik etc.

Bitte besuchen Sie www.TiNspireApps.com fuer weitere Informationen.

Vielen Dank fuer Ihrer Aufmerksamkeit.

Directional Derivatives using the TiNspire CX – Step by Step

It is straightforward to find Directional Derivatives using the TiNspire CX : just launch Calculus Made Easy at www.tinspireapps.com , select

Directional Derivative in the menu as shown below :

Next enter the given function and the 2 points as shown below:

Scroll down in bottom window to find the directional derivative with all its steps