Hello everyone! Having a field [tex] \bf B = \nabla \times \bf A [/tex] , how is it possible to get [tex] \bf A [/tex] ? For constant fields, the answer is easy, but is there a general approach to find A ? Some algorithm to do it numerically would help me immensly, too. If anyone knows some book or reference that could help me, I'd be appreciated. Thanks in advance.