[Boost-bugs] [Boost C++ Libraries] #4917: uBLAS element-wise power function

Subject: [Boost-bugs] [Boost C++ Libraries] #4917: uBLAS element-wise power function
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-12-01 17:27:10

#4917: uBLAS element-wise power function
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 Reporter:  matwey.kornilov@…          |       Owner:  guwi17        
     Type:  Patches                    |      Status:  new           
Milestone:  To Be Determined           |   Component:  uBLAS         
  Version:  Boost Development Trunk    |    Severity:  Not Applicable
 Keywords:                             |  
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 I would like to introduce element-wise power function. There are four
 functions in the patch:
 * `pow( vector_expression, scalar )`
 * `pow( matrix_expression, scalar )`
 * `element_pow( vector_expression, vector_expression )`
 * `element_pow( matrix_expression, matrix_expression )`

 == Synopsis ==

 These functions behave naturally. Let `v` is a vector, `m` is a matrix,
 `p` is a scalar then
 `pow( v, p )` and `pow( m, p )` just raise each element to the power `p`.
 `element_pow( v1, v2)` is `v1[i] ^ v2[i]`. `element_pow( m1, m2)` works
 similarly.

 == Rationalize ==

 http://ublas.sourceforge.net mentions "...elements wise basic functions
 (sin,cos,log,exp,abs,max,min,etc...)"

 == Patch ==

 The patch contains implementation and also simple test routines.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4917>
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