How to enter this Bernoulli equation

JBsvvgPk_normal.jpg Olumide Alege (@oalege87)
5/27/16, 12:00 AM
@TiMathApps how do I input this bernoulli equ pic.twitter.com/6JVTR7VnRG

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 then I will obviously be purchasing your apps again.

Something that would complete the square and accept equations with 3 variables and then graph it in the nspire. This would be amazing, then also if it could graph a vector value function (vector curve),

The Diff Geometry app that came with complex analysis is very powerful. To be able to find the “TNB” so quickly is unbelievable as well as the Curvature and Torsion,

So I just finished Cal 3 and Physic 1 Cal based, and with my professors allowing me to use my 89, I feel unstoppable with your apps and my 89.

Because the 89 is limited (it’s ram/ memory charts low compared to the standard of today) it is really exciting to have your apps on the ti-nspire I must say.

I will purchase the following apps as soon as I get an nspire:

-Calculus Made Easy
-Differential Equations Made Easy
-Algebra Made Easy

It would be great to also have
-Complex Analysis Made Easy (with Diff. Geometry module)
-Physics Made Easy
-Physics Made Easy with Calculus

Your apps are the best and I really appreciate your customer support.

Thanks,

Very impressive customer service! Customers response

Thanks for that.

Very impressive customer service!

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 enter 5
M = 60

Then in the dropdown menu select option 2: P(x>a) . Voila 84.1345%

ex2. What are the boundaries for the middle 50% of all possible random samples of n=25 scores selected from a normal population with a mean of 80 and a standard deviation of 10?

Go To F3 7 , enter
mu=80
std dev=10/sqrt(25)=10/5 = 2 so just enter 2
and in the dropdown menu select 6 NormInverse :
enter .25 (for the left 50% bound)
next redo above and enter .75 to the upper right bound.

Also, is there any way to use SPME to obtain or calculate values found in Statistical unit normal tables?

Sure, F3 7 . Use mu=1 and Std Dev=0 and a and b is desired , then use options 1, 2, 3 in the dropdown menu.

Evaluating Integrals on the TI89 using Calculus Made Easy

Linear Algebra and Chemistry apps for the TI-Nspire CX available at www.TiNspireApps.com

Great News:

Linear Algebra Made Easy and Chemistry Made Easy apps are available for download at www.TiNspireApps.com .

As usual , Step by Step solutions to Linear Algebra, Matrix and Vector problems as well as

to your Chemistry problems.

Visit www.TiNspireApps.com for more details.

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 : www.TINspireApps.com
Questions: support@TiNspreApps.com

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!!

Solve 2. and 3. order Differential Equations using TI89

Using Differential Equations Made for the TI89 we enter the 3 problems as shown below. Screenshots show how the problems were entered and the solutions.

Question 2) y”-2y+5y=0   y(0)=2  y'(0)=4

go to F2 2 and enter b=-2 and c=5 , x0=0, y(x0)=2 y,(x0)=4

Question 3) y”-3y+2y=6e^(-x)    y(0)=1 y'(0)=2 .

go to F2 3 and enter b=-3 c=2 , g=6e^(-x) x0=0 y(x0)=1 y'(x0)=2 . The corresponding homogeneous solution can be found with steps under F2 2

Question 4)  y”’-4y”+13y’=e^(-x)

the solution is the sum of the homogeneous and particular solutions. Thus, use 2 steps.

first find the homogeneous solution under F3 1 and enter t^3-4t^2+13t=0

next F3 2 . a=-4 b=13 c=0 g=e^(-x) to find part. solution -1/18 e^(-x)

Just add the two solutions.

Algebra Made Easy for TI-Nspire CX CAS is now available at www.TiNspireapps.com

Algebra Made Easy for TI-Nspire CX CAS is now available at www.TiNspireapps.com
showing Step by Step solutions to all PreCalculus topics :
-Step by Step Algebra
-Step by Step Functions
-Step by Step Sequences & Series
-Step by Step Polynomials
-Step by Step Exponential and Logarithmic functions
-Step by Step Matrices & Vectors
-Step by Step Quadratic Equations and Complex Numbers
-Step by Step Trigonometry

The Algebra App requires a CAS Nspire CX. Check on the top right of your TI Nspire CX for the letters CAS.

It is small in size (33kb) considering the large memory the TiNspire CX offers.

Questions: support