Posts filed under ti89

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 TI89.com has been phenomenal !!!!

I initially found TI89.com through the education.ti.com 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)

How to solve 1. order Differential Equations using Differential Equations Made Easy with a TI89

How to solve the 1. order Diff Eqn: (3y+2t-2)dt + (10y+3t-1) dy = 0 with y(-1)=2 Just replace every t by x and enter the D.E. and initial conditions under F1 C as shown. To view more steps on how to solve an exact Diff Eqn enter it under F1 6 . Voila!!

How to get STEP BY STEP solutions using the TI89 Titanium Calculator

How to get STEP BY STEP solutions using the TI89 Titanium Calculator A) TI89 has a Computer Algebra System You probably know that the TI 89 Titanium calculators are very powerful due to their built-in Computer Algebra System, called CAS. This allows us to solve equations such as a*x + b = c for x… (read more)

Make sure to use the correct TI Connect Software

There are two similar looking TI Connect software products, but only “TI-CONNECT SOFTWARE” allows the transfer of TI89 apps. Download it here: TI-CONNECT SOFTWARE DOWNLOAD Note its yellow-blue colored logo. However, the so called “TI CONNECT CE SOFTWARE” allows file transfers to the TI-84 calculator only. Read more about this TI84 software on TIs website… (read more)