mcabbott / mcabbott/InTheRed.jl

Error from very large & small numbers

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Dominant language
Julia
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Description

julia> [1.0876169274012003e-296
        2.8590377617020347e-194
        3.983626798390652e188
        6.198941844352751e306 ]
4-element Vector{Float64}:
 1.0876169274012003e-296  #    ┝
 2.8590377617020347e-194  #    ┝
 3.983626798390652e188    #    ┝
 6.198941844352751e306    #  Error showing value of type Vector{Float64}:
ERROR: InexactError: Int64(Inf)
Stacktrace:
  [1] Int64
    @ ./float.jl:994 [inlined]
  [2] convert
    @ ./number.jl:7 [inlined]
  [3] _round_convert
    @ ./rounding.jl:480 [inlined]
  [4] round
    @ ./rounding.jl:479 [inlined]
  [5] round(::Type{Int64}, x::Float64)
    @ Base ./rounding.jl:477
  [6] print_matrix_row(io::IOContext{…}, X::AbstractVector, A::Vector{…}, i::Int64, cols::Vector{…}, ::Tuple{…}, idxlast::Int64)
    @ InTheRed ~/.julia/dev/InTheRed/src/InTheRed.jl:367
  [7] _print_matrix(io::IOContext{…}, X::AbstractVecOrMat, pre::String, sep::Tuple{…}, post::String, hdots::String, vdots::String, ddots::String, hmod::Int64, vmod::Int64, rowsA::UnitRange{…}, colsA::UnitRange{…})
    @ Base ./arrayshow.jl:213
  [8] print_matrix(io::IOContext{…}, X::AbstractVector{…}, pre::String, sep::String, post::String, hdots::String, vdots::String, ddots::String, hmod::Int64, vmod::Int64)
    @ InTheRed ~/.julia/dev/InTheRed/src/InTheRed.jl:329
  [9] print_matrix
    @ ~/.julia/dev/InTheRed/src/InTheRed.jl:327 [inlined]
 [10] print_array
    @ ./arrayshow.jl:358 [inlined]
 [11] show(io::IOContext{Base.TTY}, ::MIME{Symbol("text/plain")}, X::Vector{Float64})
    @ Base ./arrayshow.jl:399

julia> big.(ans)
4-element Vector{BigFloat}:
 1.087616927401200285018319568545486814502889178064027059196542505850344809969077e-296  #    ┝
 2.859037761702034670545107230554641025787116350396484878711277131613590027864639e-194  #    ┝
 3.983626798390652253889328433303519879822437273521670606883129696293955010257162e+188  #    ┝
 6.198941844352751018891366080023220524260710929766619002117628826897026284271671e+306  #    ┝━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the error with the numeric vector shown in the issue, then read InTheRed.jl around print_matrix_row and print_matrix, especially the round conversion at line 367. Done means the vector prints successfully without InexactError while preserving informative formatting for both very small and very large values.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
cli
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
38/100

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