ti89guru

I have been involved in programming TI89s for over 10 years
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Love the TI89 Physics & Differential Equations Made Easy Apps PLUS: Outstanding Customer Service

I originally found the ti89.com website by surfing the web trying to find ways to help with my physics class. After downloading my first app I loved it! Helped in so many ways especially when they do step by step. I downloaded my second app a year later taking my differential equation class. It easily… (read more)

Chemistry App for the TiNspire CX at www.TiNSpireApps.com has Bases, Acids, Equilibrium, Valence Electrons

It seems that the Stoichiometry section of our Step by Step Chemistry App has doubled over the last few months, lots of new computational Chemistry has been added. Find app updates below: – Valence Electrons of Atoms and Molecules – Equilibrium Constant Kc – Equilibrium Composition – Kp = Kc*(RT)^n – Equilibrium of weak bases… (read more)

Calculus Made Easy App for the TiNspire CX CAS at www.TiNSpireApps.com has been updated : Newton law of Cooling, Parametric Eqns, Root Test , etc

We love Calculus and enjoyed implementing the following updates: – Differential Equations: Eulers Method, Newton Law of Cooling, Radioactive decay -Parametric Equations : given Velocity v(t) find Tangentline, Curve Length, etc – Convergence Test: The Root Test was added – Further improvements to Step by Step L’hopital Rule, Limits and Step by Step Integration were… (read more)

The most prestigious apps + first rate customer support = absolute primo @ Smartsoft/ tinspireapps/ ti89apps/

Has anyone ever told you how awesome you are? This is really cool!! thank you… The most prestigious apps + first rate customer support = absolute primo @ Smartsoft/ tinspireapps/ ti89apps/ That’s not calculus but it’s an equation that can be proved!!!!

Calculus Made Easy app is phenomenal

Thanks for the great products and superb service you deliver. Your CME app is phenomenal and am actually looking forward to writing exams now 🙂 Thanks for making it possible on the TI89!!! Keep up the good work

TI89 Made Easy Apps helped me to learn the material faster and perform better on tests

“The TI89 Made Easy apps helped me with test concepts in a way that provided me to learn the material faster. This helped me to perform well on exams.” Review of Long Time Made Easy Customer (Used 10 apps)

How to do Proof by Induction on the TI89 using Finite Math Made Easy

NEW APP: Solve Numerical problems step by step using the TiNspire

Numerical Analysis Made Easy for the TiNspire CAS CX was just released at http://www.tinspireapps.com/?a=NAME . Great for numerically solving Differential Equations, Taylor Series, Differentiation, Integration, Matrices, Regression, Markov Chains, Polynomials , Algebra and more. For more details check out : http://www.tinspireapps.com/?a=NAME

It’s like Wolfram Alpha in your TI calculator

love your products , great learning tool !!!

I have high regards for your product and customer service, Ive bought 4 different apps over the past year or two and Linear Algebra Made Easy being the 5th. Overall I love your products , they are a great learning tool to me. I am currently enrolled in an electrical engineering technology program. A lot… (read more)