Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →
instance method
Float#-@
() -> ::Float
-self → float
numeric.rb
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# File tmp/rubies/ruby-4.1.0-preview1/numeric.rb, line 389
def -@
Primitive.attr! :leaf
Primitive.cexpr! 'rb_float_uminus(self)'
end
Returns self, negated:
Example
-3.14 # => -3.14 -(-3.14) # => 3.14 -0.0 # => -0.0