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zero? 

        # Numeric.zero?

(from ruby core)
---
    zero? -> true or false

---

Returns `true` if `zero` has a zero value, `false` otherwise.

Of the Core and Standard Library classes, only Rational and Complex use
this implementation.

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.