/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: ProfRalph https://cdn.slidesharecdn.com/profile-photo-ProfRalph-48x48.jpg?cb=1522996083 I solve non-linear, non-homogeneous, simultainous, ordinary and parabolic partial, differential equations that model complex science and engineering systems !