I have two fortran derived types one that will holds a point in Cartesian coordinates SUBROUTINE path_append_vertex(this, x, y, z) IMPLICIT NONE !----- ! Variable declarations.
Originally known as FORTRAN, but written in lower case since the 1990s with Fortran 90, this language was developed initially by John Backus as a way to make writing programs for the IBM 704 mainframe ...
FORTRAN started out as IBM's' Mathematical Formula Translating System. It was designed by a team led by John Backus and targeted computationally intensive applications from physics to weather ...