[jira] [Created] (MAHOUT-1727) Elementwise analogues of scala.math functions for tensor types

["Dmitriy Lyubimov (JIRA)" <ji...@apache.org>]

Dmitriy Lyubimov created MAHOUT-1727:
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             Summary: Elementwise analogues of scala.math functions for tensor types
                 Key: MAHOUT-1727
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1727
             Project: Mahout
          Issue Type: Improvement
            Reporter: Dmitriy Lyubimov
            Assignee: Dmitriy Lyubimov
             Fix For: 0.10.2



what we mean here: 
log(5)
vlog(vec)
mlog(mxA)
dlog(drmA)

in R, all these variants are enacted by single function log(x). Unfortunately, we cannot overload standard functions since they are defined in another package and Scala would allow such an overload.

Hence, notation conventions: 
vector functions are prepended by 'v': vlog, vabs...
in-core matrix functions are prepended by 'm': mlog, mabs...
DRM functions are prepended by 'd' (for distributed): dlog, dabs...




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