The field of reals is the set of real numbers, which form a field. This field is commonly denoted (doublestruck R).
Field of Reals
See also
Field, R, Real Number, RealsExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Field of Reals." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/FieldofReals.html