exp/log/sqrt are not imported

[DanielVandH]

exp/log./sqrt are defined in

BlockArrays.jl/src/blocklinalg.jl

Line 407 in cc46573

for op in (:exp, :log, :sqrt)

, but those methods are not imported so not actually used. Is it intended to be private to BlockArrays?

[DanielVandH]

e.g. (I'd give a simpler example but I don't see how to properly create a BlockDiagonal)

julia> length(methods(exp))
22

julia> length(methods(BlockArrays.exp))
1

julia> D = Fourier() \ diff(Fourier()); D = D[Block(1):Block(5), Block(1):Block(5)]; D
5×5-blocked 9×9 BlockBandedMatrices.BlockSkylineMatrix{Float64, Vector{Float64}, BlockBandedMatrices.BlockSkylineSizes{Tuple{BlockedOneTo{Int64, StepRange{Int64, Int64}}, BlockedOneTo{Int64, StepRange{Int64, Int64}}}, Fill{Int64, 1, Tuple{Base.OneTo{Int64}}}, Fill{Int64, 1, Tuple{Base.OneTo{Int64}}}, BandedMatrices.BandedMatrix{Int64, Matrix{Int64}, Base.OneTo{Int64}}, Vector{Int64}}}:
 0.0  │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅
 ─────┼─────────────┼─────────────┼─────────────┼───────────
  ⋅   │  0.0  -1.0  │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅
  ⋅   │  1.0   0.0  │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅
 ─────┼─────────────┼─────────────┼─────────────┼───────────
  ⋅   │   ⋅     ⋅   │  0.0  -2.0  │   ⋅     ⋅   │   ⋅     ⋅
  ⋅   │   ⋅     ⋅   │  2.0   0.0  │   ⋅     ⋅   │   ⋅     ⋅
 ─────┼─────────────┼─────────────┼─────────────┼───────────
  ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │  0.0  -3.0  │   ⋅     ⋅
  ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │  3.0   0.0  │   ⋅     ⋅
 ─────┼─────────────┼─────────────┼─────────────┼───────────
  ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │  0.0  -4.0
  ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │   ⋅     ⋅   │  4.0   0.0

julia> exp(D)
9×9 Matrix{Float64}:
  1.0   0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
  0.0   0.540302  -0.841471   0.0        0.0        0.0        0.0        0.0        0.0
  0.0   0.841471   0.540302   0.0        0.0        0.0        0.0        0.0        0.0
 -0.0  -0.0       -0.0       -0.416147  -0.909297  -0.0       -0.0       -0.0       -0.0
  0.0   0.0        0.0        0.909297  -0.416147   0.0        0.0        0.0        0.0
 -0.0  -0.0       -0.0       -0.0       -0.0       -0.989992  -0.14112   -0.0       -0.0
  0.0   0.0        0.0        0.0        0.0        0.14112   -0.989992   0.0        0.0
 -0.0  -0.0       -0.0       -0.0       -0.0       -0.0       -0.0       -0.653644   0.756802
  0.0   0.0        0.0        0.0        0.0        0.0        0.0       -0.756802  -0.653644

julia> BlockArrays.exp(D)
ERROR: MethodError: no method matching exp(::BlockBandedMatrices.BlockSkylineMatrix{Float64, Vector{…}, BlockBandedMatrices.BlockSkylineSizes{…}})
You may have intended to import Base.exp
The function `exp` exists, but no method is defined for this combination of argument types.

Closest candidates are:
  exp(::BlockedMatrix{T} where T)
   @ BlockArrays C:\Users\djv23\.julia\packages\BlockArrays\tOOU0\src\blocklinalg.jl:409

Stacktrace:
 [1] top-level scope
   @ REPL[79]:1
Some type information was truncated. Use `show(err)` to see complete types.