@@ -12,8 +12,9 @@ in the [data.txt](data.txt) file, modify those and write the modified data into
## [callFortranRoutine.py](callFortranRoutine.py)
Perform the [Rutishauser-Kahan-Pal-Walker algorithm](https://link.springer.com/content/pdf/10.1007/BF01405565.pdf) to transform an arrow matrix (with non-zero elements
in the first row and column, and diagonal) into a symmetric trifdiagonal matrix.
It uses the [f2py](https://www.numfys.net/howto/F2PY/) sub-module of numpy to compile a fortran subroutine that can be called in python.
in the first row and column, and diagonal) into a symmetric tridiagonal matrix.
It uses the [f2py](https://www.numfys.net/howto/F2PY/) sub-module of numpy to compile a fortran subroutine (written in [libfor.f95](libfor.f95))
@@ -7,4 +7,9 @@ Also, you can look at an [extended list of Sympy Tutorials](http://docs.sympy.or
This script is a basic example of how to solve a differential equation using sympy.
In particular, the equation u''(t) - u(t) = exp(t) is solved, using the sympy function dsolve [minimize](http://docs.sympy.org/latest/modules/solvers/ode.html).
In particular, the equation u''(t) - u(t) = exp(t) is solved, using the sympy function [dsolve](http://docs.sympy.org/latest/modules/solvers/ode.html).