[jira] [Comment Edited] (MATH-1358) Function object for "log1p(x) / x"

["Rob Tompkins (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MATH-1358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15256231#comment-15256231 ] 

Rob Tompkins edited comment on MATH-1358 at 4/25/16 11:35 AM:
--------------------------------------------------------------

The sine function has the term "cardinal" associated with it when we actually perform 
{code:none}
cardinal sine (x) = sinc(x) = sin(x)/x
{code}
however, I don't seem to see any clearly defined analog, in a quick glance at the literature , for the log function. Do you have any thoughts on what the name should be? Clearly first intuition would be 
{code:none}
log1pc(x),
{code}
 but that only follows from the 
{code:none}
sinc(x)
{code}
naming convention and isn't necessarily rooted in the literature.


was (Author: chtompki):
The sine function has the term "cardinal" associated with it when we actually perform 
{code:none}
cardinal sine (x) = sinc(x) = sin(x)/x
{code}
however, I don't seem to see any clearly defined analog, in a quick glance at the literature , for the log function. Do you have any thoughts on what the name should be? Clearly first intuition would be {{log1pc(x)}}, but that only follows from the {{sinc(x)}} naming convention and isn't necessarily rooted in the literature.

> Function object for "log1p(x) / x"
> ----------------------------------
>
>                 Key: MATH-1358
>                 URL: https://issues.apache.org/jira/browse/MATH-1358
>             Project: Commons Math
>          Issue Type: Task
>            Reporter: Gilles
>            Assignee: Rob Tompkins
>            Priority: Minor
>             Fix For: 4.0
>
>
> Function object to be created in package {{o.a.c.m.analysis.function}}.
> Rationale: see MATH-1344.



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