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Bug #10762

closed

Math **

Bug #10762: Math **

Added by jayteesf (Jonathan Thomas) almost 11 years ago. Updated almost 11 years ago.

Status:
Rejected
Assignee:
-
Target version:
-
ruby -v:
ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-darwin14]
Backport:
2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
[ruby-core:67713]

Description

According to the Maths, "any number raised to the zero power equals one".

Yet:

ruby -e 'puts((-1 ** 0) == 1)'
=> false

Updated by Anonymous almost 11 years ago Actions
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 #1 [ruby-core:67714]

It's operator precedence. ** has higher precedence than unary -

irb> -1 ** 0
=> -1
irb> (-1) ** 0
=> 1
irb> -(1 ** 0)
=> -1

Updated by nobu (Nobuyoshi Nakada) almost 11 years ago Actions
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 #2 [ruby-core:67715]

  • Status changed from Open to Rejected
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