Introduction - If you have any usage issues, please Google them yourself
Fixed-point can only say that within a certain range of numbers (integer or decimal, signed or unsigned), floating point, said although the number will be given a more full range of widening, but still can only say that (theoretically) infinite precision Number this Introduction will introduce a new type of number- the number of effect, to perfectly express the number of range and accuracy of two aspects, and a brief description (demo) effective number of four operations.