Trait defining instance method as_f64() : f64 that provides a
cost-free conversion into f64.
Trait defining instance method as_str() : &str that allows a type to
expose its contiguous character representation to client code.
Trait defining instance method is_default() : bool that allows a type
instance to indicate whether it holds the “default” value.
Trait defining instance method is_empty() : bool that indicates
whether the implementing type instance is logically empty.
Trait defining instance method is_zero() : bool that indicates whether
the implementing type instance is numerically zero.
Trait defining instance method len() : usize that indicates
whether the implementing type instance is logically empty.
Trait defining instance method to_f64() : f64 that provides a
potentially expensive conversion into f64.
Trait defining class method zero() : T that indicates whether
the implementing type instance is numerically zero.