Elvish – An experimental Unix shell in Go

Re:Elvish – An experimental Unix shell in Go by bnegreve on Sunday July 27, 2014 @10:27AM (#8092818)

I really like in-shell floating point operations. But this:

    > / 1 0
   +Inf

Is not the correct answer - even as a limit - since the limit of 1 / x (when x -> 0) can be +Inf or -Inf.

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Re:Elvish – An experimental Unix shell in Go by xiaq on Sunday July 27, 2014 @10:41AM (#8092874)

The 0 is a positive one.

    > / 1 -0
    -Inf

BTW this is just IEEE floating point.

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Re:Elvish – An experimental Unix shell in Go by bnegreve on Sunday July 27, 2014 @10:50AM (#8092887)

Ah yes indeed [1], I didn't know.

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