This page contains automated test results for code from O'Reilly's Ruby Cookbook. If this code looks interesting or useful, you might want to buy the whole book.

Defining a Virtual Attribute | ||
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Code | Expected | Actual |

class Arc attr_accessor :radians def degrees @radians * 180 / Math::PI end def degrees=(degrees) @radians = degrees * Math::PI / 180 end end arc = Arc.new arc.degrees = 180 arc.radians |
3.14159265358979 | 3.14159265358979 |

arc.radians = Math::PI / 2 arc.degrees |
90.0 | 90.0 |