Bug #10762: Math **

• 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

[jayteesf (Jonathan Thomas)]

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

Yet:

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

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

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

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Rejected