31. The main feature of this mode is that math is entered using two dimensional input. 32. A point winding is almost two dimensional , rather like the spring of a watch spiral. 33. An event horizon is two dimensional -it is a surface. 34. In other words, the monodromy is a two dimensional linear representation of the fundamental group. 35. His thesis was titled " A Geometrical Approach to Two Dimensional Conformal Field Theory ". 36. In a two dimensional cartesian plane, identify the point with coordinates with the complex number. 37. :One of its uses is in representing three dimensional diagrams on a two dimensional page. 38. :I saw an argument somewhere that gravity would not work in a two dimensional universe. 39. In 1980, Michael Storms proposed a two dimensional chart with an X and Y axis. 40. In two dimensional spacetime, the transformations of the conformal group are the infinitely many of them.