Archive for April 2016

Solve Differential Equation using LaPlace Transform with the TI89

Lets solve y”-4y’+5y=2e^t y(0)=3 , y'(0)=1 Go to F5 1 and enter the D.Eqn as shown in the image, just press enter and see how the solution is derived , nicely laid out, step by step using Differential Equations Made Easy.

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 a Bernoulli Equation using Differential Equations Made Easy with the TI 89

To solve x*(dy/dx) + y = 1/y^2 there are several options to do so. F1 G : Bernoulli or F1 A : Linear in y or F1 D: N*y’+M=0 , try them all to get the same solution in different ways. To use the F1 G : Bernoulli , first rewrite x*(dy/dx) + y =… (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)

Implicit Differentiation Calculator Step by Step

STEP BY STEP Implicit Differentiation with examples – Learn how to do it in either 4 Steps or in just 1 Step. A) You know how to find the derivatives of explicitly defined functions such as y=x^2 , y=sin(x) , y=1/x, etc . What if you are asked to find the derivative of x*y=1 ?… (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)