Broadcasting subtraction of 2 times t from 1.
On Sat, Apr 19, 2014 at 3:42 PM, paul analyst <[email protected]> wrote: > Big thx, > what is "-2" before t ? > Paul > > W dniu sobota, 19 kwietnia 2014 14:47:40 UTC+2 użytkownik Stefan Karpinski > napisał: >> >> scale!(v, 1 .- 2t) >> >> >> On Sat, Apr 19, 2014 at 5:11 AM, paul analyst <[email protected]> wrote: >> >>> I have a logical vector t >>> julia> t >>> 1x4 BitArray{2}: >>> true false false false >>> >>> and matrix v >>> julia> v >>> 4x4 Array {Float64, 2}: >>> -0.0018187 -0.18174 0.982684 0.0360478 >>> -0.018408 0.98314 0.1819 -0.00297265 >>> -0.995394 -0.0167994 -0.00839779 0.0940118 >>> 0.0940681 0.0111097 -0.0342677 0.994914 >>> >>> How quickly multiplied by -1 only the columns where vactor t = true ? >>> Paul >>> >> >>
