require 'facets/math/exp10' require 'facets/numeric/range' # used to test within a precision test_case Math do class_method :exp10 do test do Math.exp10(0.0).range(1.0e-6).assert === 1.0 Math.exp10(0.5).range(1.0e-6).assert === Math.sqrt(10.0) Math.exp10(1.0).range(1.0e-6).assert === 10.0 end end end