Btw Karl: vector_range_M = viennacl::linalg::prod(A_MxN, vector_N);
does not work. That would be equivalent to: vector_range_M = project( viennacl::linalg::prod(A_MxN, vector_N) , 0,M ); -E On Sun, Jul 21, 2013 at 4:13 PM, Evan Bollig <bol...@gmail.com> wrote: > Ah I see. Thanks for the clarification on projecting the LHS. I was > trying to assign the result to an unprojected vector assuming (vector > - vector_range) would return a vector and (vector_range - vector) > would return a vector_range (i.e., operation returns operand type). > > -E > > On Sun, Jul 21, 2013 at 4:09 PM, Karl Rupp <r...@iue.tuwien.ac.at> wrote: >> Hi Evan, >> >> >>> Can you refresh my memory on how ViennaCL behaves with this operation: >>> >>> >>> vector = vector - vector_range >>> >>> I would like to subtract an M < N sized vector_range from an N sized >>> vector (by operating on the first M elements). Is this supported in >>> 1.4.2? >> >> >> Yes, this is supported. You can just use >> >> project(x, range(a, b)) = project(y, range(c, d)) - z; >> >> where z is some existing vector_range. Mixing of vectors with ranges and >> slices is perfectly fine and supported. >> >> Best regards, >> Karli >> > > > > -- > -Evan Bollig > bol...@gmail.com > bol...@scs.fsu.edu -- -Evan Bollig bol...@gmail.com bol...@scs.fsu.edu ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ ViennaCL-devel mailing list ViennaCL-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/viennacl-devel
