## 50 Reputation

0 years, 174 days

## RK-4 for System of Nonlinear ODE'S...

Maple 2015

Hello Everyone;

Hope you are fine. My problem is convert into nonlinear system of ODE's and further i need make the code of apply rk-4 for the formulated ODE's. Kindly guide me. The file is attached. I am waiting for your kind response.

Thanks

Question3.mw

 >
 >
 >
 >
 >
 >

## Remove the ODE's from set with same vari...

Maple 2015

Hello Everyone;

Hope you are fine. I have set of following ODE's;

Every variable has two ODE's. I need to take one ODE for each variable. Is that any way?
I am waiting for your kind response.

Thanks

Question2.mw

## System of Nonlinear ODE's Issue in Matri...

Maple 2015

Hello Everyone;Hope you are fine. I am trying to convert the nonlinear system of ODE's into matric form using the following comand but not working it.

Kindly help me to do this. The cose is pasted and also attached. I am waiting for your kind response.

Thanks.

Question1_NEW.mw

 >
 >
 >
 >
 (1)
 >
 (2)
 >
 (3)
 >

## Finite Difference Method for PDE's...

Maple 2015

Hello Everyone.

Hope you are fine. I have two following queries

1. Are there any builtin commands in Maple, so that we can apply the finite difference method directly to the PDE's?

2. We all know about "BurdenFaires, and Burden's NUMERICAL ANALYSIS" book. The important Maple codes are discussed on this book. Is there any website where I can take these codes on Maple files?

I am waiting for kind response.

Thanks

## Solve command Issue due to Computational...

Maple 2015

Hello Everyone;

Hope you are fine. I am solving system of odes using rk-4 method. For this purpose I formulate the "residual" (on maple file) which is further function of "x" and "y". With the help of discritization point further I convert "residual" into system of ode's. Then i used "sys111 := solve(odes_Combine, `~`[diff](var, t))" to simplify the system. Finnally i applied RK-1. Code is pasted and attached. This all process is for "N=4". When i increase the value of "N", number of Odes increase accordingly. With increasing value of "N" the comand "sys111 := solve(odes_Combine, `~`[diff](var, t))" taking a lot of time due to heavy computation. Is that any way to proceed without this comand for rk-1?

Question1.mw

 >
 (1)
 >
 >
 (2)
 >
 >
 >
 >
 (3)
 >
 >
 >
 >
 >
 >