41. Perhaps the simplest example is the cartesian product of the long line with the space of real numbers. 42. Consider the set of real numbers and ?denotes the Cartesian product , which is a vector space. 43. Suppose that " c " is a annulus and so is homeomorphic to the Cartesian product of 44. The Baire space is defined to be the Cartesian product of tree of finite sequences of natural numbers. 45. It is in the shape of a Clifford torus, which is the Cartesian product of two circles. 46. Now consider the infinite cartesian product \ Pi _ { i \ in I } A _ i. 47. If the Cartesian product is taken, the cells of the table contain ordered pairs of the form. 48. If it does create the Cartesian product first, is there a way to make it more efficient? 49. The Cubinder is the Cartesian Product of a circle and a square, and it is a rotachoron. 50. In other words, it is a subset of the Cartesian product " A " 2 =.