Posts filed under ti89

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

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

It’s like Wolfram Alpha in your TI calculator

I struggled with derivatives and integral. Thankfully Calculus Made Easy made my life easier by showing step by step solutions. 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)

Help me to understand the series module of the Calculus program

The sums of any series can be found under F2 C , just enter the series. Thats for questions 1 and 2 Now, since the series in 1) is a converging geometric series you could also use the geometric series test under F2 3 . For 3) use the integral test under F2 4 :… (read more)

thank you for the outstanding customer support

Hi Mike, I just wanted to thank you for the outstanding customer support. When I submitted a question to you regarding some functionality in SPME, I certainly wasn’t expecting a response within hours, especially on a Sunday. It’s been a long time since I received such a rapid and professional response from an online vendor…. (read more)

Conic Sections, Differential Geometry , Complex Analysis for the TI89 – Testimonial

I’ve been waiting to get the nspire, and now I really have no reason to keep waiting. I felt that the 89 with your apps was the way to go, your apps are great, I have 10 of them. I love complex analysis, it’s one of my favorites. I will get the nspire soon and… (read more)

Normal Distribution on the TI89 using Statistics Made Easy

Read below please: ex1. What is the probability of obtaining a sample mean greater than M=60 for a random sample of n=16 scores selected from a normal population with a mean of 65 and a standard deviation of 20? Go To F3 7 and select Normal distribution, enter mu=65 std dev=20/sqrt(16)=20/4 = 5 so just… (read more)

Solving 2. order Vibrating Spring Differential Equation using the TI89

The shown spring problem can be solved using DEQME : F2 G enter w=9.81 (to make coeff=1) g=9.81 b=0 k=64 F=0 Hit ENTER about 7 times , Variation of Parameter will be used to solve, then you may enter your initial conditions x0=0 y(x0)=2/3 y'(x0)=-4/3 Voila!!

The support I get from has been phenomenal !!!!

I initially found through the website because I was looking for an app which could help me understand Calculus equation better. I initially bought the Calculus made easy 2 years ago and was just very fascinated how much this app helped me understand calculus problems better. If it wouldn’t have been for Calculus… (read more)

How to perform a Z-Test Step by Step on the TI 89 using Statistics Made Easy

Here is a sample problem: A student who works in the blood lab plans to test the hypothesis that the mean cholesterol level of men is less than 230 mg/dL. The population variance of cholesterol level is assumed to be (40 mg/dL)^2. The student tested nine men for cholesterol levels and found the following values… (read more)