is any
interest.
Thanks & Best,
Ravi
From: Duncan Murdoch
Sent: Friday, March 6, 2015 3:31 PM
To: Ravi Varadhan; r-devel@r-project.org
Subject: Re: [Rd] Hyper-dual numbers in R
On 06/03/2015 11:18 AM, Ravi Varadhan wrote:
> Hi,
> Has anyone
On 06/03/2015 11:18 AM, Ravi Varadhan wrote:
> Hi,
> Has anyone in R core thought about providing "hyper-dual numbers" in R?
> Hyper-dual (HD) numbers, invented by Jeffrey Fike at Stanford, are useful for
> computing exact second-order derivatives (e.g., Hessian). HD numbers are
> extensions o
Hi,
Has anyone in R core thought about providing "hyper-dual numbers" in R?
Hyper-dual (HD) numbers, invented by Jeffrey Fike at Stanford, are useful for
computing exact second-order derivatives (e.g., Hessian). HD numbers are
extensions of complex numbers. They are like "quaternions" and have
