Hello friends!! I want to solve coupled two second order and one first order differential equations of two variables and want to plot 3D graph. My code is attached and it is giving errors. Kindly help me to remove the errors.
Thanks Sir for your help. I will upgrade to higher version.
Sure sir. I got your point. Thanks you so much
Unfortunately, I can not adapt the code for the old version of Mathematica.
Code dosen't work ,because you're using the older version of Mathematica 7.0.
You must upgrade to a newer version probably at least 11 .
Sir, Actually i have also tried the same command but, i am not able to get the output. My code is attached below.
What is the problem? I edited the code, added 3D figure.
Sir, I want to plot 3D graph of B with zeta and r.
Thanks sir for your answer. I will make changes in my code as per your suggestions and try to get the required results
