Differential Equations TI89 App with Step by Step Solutions

Solve Differential Equations questions stepwise using the TI89 Calculator

Scroll down to select APP and observe the provided
Step by Step solutions to the right. It is worldwide
the only Math software that can do this!!!   

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 Solve any Differential Equations Problem instantly.

  • The most comprehensive Differential Equations APP for calculators.

  • Users have boosted their Differential Equations knowledge.

  • First, Second and higher order Differential Equations.

  • Shows step by step solutions for some Differential Equations such as separable, exact, ..

  • Includes Slope Fields, Euler method, Runge Kutta, Wronskian, LaPlace transform, system of Differential Equations, Bernoulli DE, (non) homogeneous linear systems with constant coefficient, Exact DE, shows Integrating Factors, Separable DE and much more.   

  • Draw Phase Lines.   

  • Ideal for quick review and homework check in Differential Equation/Calculus classes.

  • Easy to use. Just plug in the equation and the correct answer shows.

  • Read about the most important Partial Differential Equations. We don't solve them here. (Future project.)

  • Step by Step - Bernoulli Differential Equation

  • Step by Step - Exact Differential Equation

  • Step by Step - Non-Exact DE with Integrating Factor

  • Step by Step - Homogeneous 1. Order Differential Equation

  • Step by Step - Initial Value Problem Solver for 2. Order Differential Equations with non matching independent variables (Ex: y'(0)=0, y(1)=0 ) 

  • Step by Step - Inverse LaPlace for Partial Fractions and linear numerators.

  • Step by Step - LaPlace Transform (Partial Fractions, Piecewise, etc)

  • Step by Step - Eigenvalue and Eigenvectors. 

  • Step by Step - Variation of Parameter (for 1. and 2. order Diff. Eqn's)

  • Step by Step - Method of Undetermined Coefficients

  • Step by Step - Wronskian to check Independence of Functions

  • Step by Step - Wronskian to find Coefficients 

  • Step by Step - Cauchy-Euler D.E. of order 2 and 3.

  • Step by Step - Riccati Equation

  • Step by Step - Differential Equation Linear in x or in y (even using VOP). 

  • Step by Step - Linear Fractions

  • Clairaut, Lagrange (d'Alembert) and Linear Fraction Differential Equations

  • Solve the "Salt in the Tank" type Differential Equation problems.

  • Solve any Rate problem.  

  • Solve RL-Circuits

  • Orthogonal Trajectories

  • Discrete Fourier Transform (DFT, FFT)

  • Perform the Convolution of two Functions

  • Compute the Infinite Binomial Series or perform the Binomial Theorem

  • Vibrating Springs and solve RCL Circuits


  • Read the DEQME User Guide

  • Read: Read a SUMMARY(pdf file) of all Functionality under F1 and F2 with many examples and screenshots and a comparison with other CAS products.  

  • Documentation


User C. F.:
"The additions such as step by step exact DE, step by step homogeneous and step by step bernoulli are fantastic and would definitely make differential equations made easy an excellent study tool for anyone. Or it can be used as a quick solver to check steps. I think it's the best software of it's kind."

User A.M.:
I just have to give it to you guys for the great job you are doing. I was using the salt in tank program and it works flawlessly, its beyond everything I expected. Thanks again

User J. P.:
I highly recommend DME, it is unlike anything else out there. The ability to solve nearly any first and second order differential equation makes almost as powerful as a computer. Great for solving HW problems and the step-by-step function helped me to find my mistakes, which makes it better than a computer!  I love the phase line tool and the step-by-step Inverse LaPlace function.  It is a great learning tool. – modem designer



 Sample Capabilities:

Basics of DiffEqns:
Look up facts of DiffEqns, here Homogeneous DiffEqns.



Step by Step DiffEqns:
Here view separable Diff Eqns.


View Slope Fields.




Perform the Runge Kutta Method.




Perform the Method of Undetermined Coefficients - Step by Step.





Draw a Phase Line and analyze.





Solve Diff Eqns of the Format
M(x,y)dx + N(x,y)dy=0 .





Solve 2. order Diff Eqns:
Here, solve a homogeneous one.




Solve higher order Diff Eqns:
Here, solve a linear one with constant coefficients.




Perform LaPlace Transforms.




View the Wronskian.

Step by Step Bernoulli
Step by Step Exact D. E.
Step by Step 1. Order Homogeneous D.E.
Wronskian to find Coefficients