M. Kuroda, H. Michiwaki, S. Saitoh, and M. Yamane, New meanings of the division by zero and interpretations on 100/0=0 and on 0/0=0, Int. J. Appl. Math. Vol. 27, No 2 (2014), pp. 191-198, DOI: 10.12732/ijam.v27i2.9.
S. Saitoh, Generalized inversions of Hadamard and tensor products for matrices, Advances in Linear Algebra & Matrix Theory (in press).
Is the point at infinity a number? Meanwhile, as the number there exists the zero: z/0=0.
Should we inform the beautiful facts, widely?: For the elementary graph of y = 1/x, for x =0, y=0. Its complete proof may be given in one page, by elementary means in the high school level. Furthermore, we can see the definite results that 100/0=0, 0/=0, and they are applicable widely.