fortran90-call-gnuplot-test

This is a test to try calling Gnuplot from a Fortran 90 script. The compiler used is GFortran.

The main program generates 3D data of the function

$$ f(x, y) = \cos\left(x^2+y^2\right) + \sin\left(x+y\right) $$

in a suitable format for Gnuplot storing it in the file data.txt. Then, it calls Gnuplot for plotting the generated data using the commands from the file gnuplot_script.plt.

The resulting plot is

For the making of the main program the following references have been consulted:

1. Engel, P., 2020. Gnuplot | Programming In Modern Fortran. [online] cyber.dabamos.de, The Cyber Vanguard.

2. Moin, P., 2002. Mathematical And Computational Methods For Engineers. Fortran 90 Tutorial: Subprograms. [online] web.stanford.edu, Standford University.

(Engel 2020) was consulted for the data file creation and gnuplot plotting from Fortran. (Moin 2002) was consulted for the creation of functions in Fortran 90.