It has pointed out that pointwise is a quantized unit concept of Riemann function, which features random "asymmetry, inhomogeneity and discontinuity”. It establishes the abstract relativistic structure of dimensionless quantities(called circular logarithm and super symmetric matrix unit) by application of the principle of relativity so as to ensure the “normativity and invariability” of every pointwise numerical value, location, property, topology and zero error, and achieve, with Riemann function, "topological variational rules without any specific content and accurate resolution that the number of elements and critical points (1/2) are all at the {1/2}^Zstraight line”. This computing method is simple, stable, self-consistent and pragmatic and features extensive applicability for multiple disciplines.