I originally studied chemical engineering as an undergrad, but now I am doing my master's degree in nuclear engineering, with the focus on nuclear fusion plasma physics. After a few months into research, I feel that I really cannot continue simulating and writing papers for the rest of my life...
Hello,
I am trying to write a Fortran subroutine to solve non-linear equations (given by external function fnxname) using Newton's method, where the derivative is given by finite difference calculation. How may I use the function in the program.
Suppose the desired function name is given...