simple-expr

Minimalistic toolkit for simple mathematical expression.

LTS Haskell 24.28:0.1.1.0
Stackage Nightly 2026-01-18:0.2.0.2
Latest on Hackage:0.2.0.2

See all snapshots simple-expr appears in

BSD-3-Clause licensed by Alexey Tochin
Maintained by [email protected]
This version can be pinned in stack with:simple-expr-0.2.0.2@sha256:e8ee8fe3e5e8588e8aeefaf7863ecaa238a33fead675f9cb632d8935e2544f8c,3654

Module documentation for 0.2.0.2

  • Control
    • Control.ExtendableMap
  • Data
    • Data.Graph
      • Data.Graph.VisualizeAlternative
  • Debug
    • Debug.SimpleExpr
      • Debug.SimpleExpr.Expr
      • Debug.SimpleExpr.GraphUtils
      • Debug.SimpleExpr.Tutorial
      • Debug.SimpleExpr.Utils
        • Debug.SimpleExpr.Utils.Algebra
        • Debug.SimpleExpr.Utils.Traced
Used by 1 package in nightly-2026-01-18(full list with versions):
inf-backprop

This is a minimalistic toolkit for simple mathematical expression developed for debug purposes similar to simple-reflect package but based on slightly different principles. In particular, we use ordinary syntactic trees instead of turning them into strings.

There is a primitive manipulation capability like

>>> simplify $ (x + 0) * 1 - x * (3 - 2)
0

Besides an expression visualization feature is also provided.

See tutorial for details.

Changes

Revision history for simple-expr

[0.2.0.2] – 2025-11-23

  • Documentation fixes

[0.2.0.1] – 2025-11-23

  • Documentation fixes

[0.2.0.0] – 2025-11-13

Changed

  • Compatibility with inf-backprop 0.2.0.0
  • Removed BinaryFuncF
  • Switched form String to Text
  • Instances of FromIntegral for SimpleExpr type.

[0.1.1.0] – 2023-08-05

Fixed

  • Compatibility up to LTS 21.6

[0.1.0.0] – 2023-05-12

Added

  • Basic types SimpleExpr, Expr and instances for NumHask typeclasses.
  • Conversion to graphs from graphite package.
  • Visualization provided by graphviz.
  • Tutorial