phong; % make nice lightning saveas(gcf, 'surface_vectors.eps', 'psc2'); print('-dpng', '-r300', 'surface_vectors.png') % save to file. English author name
|Description =Magnetic field on a surface |Source =http://zh.wikipedia.org/wiki/File:Vector_field_on_a_surface.PNG |Date = modified 28 Sep. 2009 |Author
illustration of the surface integral. % It shows how a surface is split into surface elements. function main () % the function giving the surface and its gradient
The surface normal is an imaginary line perpendicular to the surface. Incidence angle is the angle formed between the solar vector and the surface normal