//joinstr function that is called with the varying number of arguments is known as variadic function. //In the declaration of the joinstr function, the type of the last parameter is preceded by an ...
Corner = (/-1,-1,-1 ,,0,-1,-1 ,,0,1,-1 ,,-1,1,-1 ,,-1,-1,1 ,,0,-1,1 ,,0,1,1 ,,-1,1,1/) ! Corner node positions: (/ x_1,y_1,z_1, x_2,y_2,z_2,..... , x_8,y_8,z_8 ...