Archive for May 2016

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)

Step by Step Calculus for the Ti-Spire : Watch this Video at

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)

How to enter this Bernoulli equation

Olumide Alege (@oalege87) 5/27/16, 12:00 AM @TiMathApps how do I input this bernoulli equ Answer: divide both sides by X to have dy/dx +y/X = 1/x*y^2. Now you see how to enter it. p(X)=1/x and q(X)=1/x n=-2 . got it?

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)

Very impressive customer service! Customers response

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)

New Ti-Nspire apps available: Chemistry and Differential Equations

1) Step by Step Chemistry solutions for Stoichiometry, Mass, Moles, Gas Laws , Period Table of Elements, Significant Digits and much more. 2) Step by Step Differential Equation solutions: 1. , 2. and higher order Differential Equations, Laplace and Inverse Transforms and much more More Info : Questions:

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!!