SymbolicNet6.Interactive.Extension 0.1.0-alpha4

SymbolicNet6.Interactive.Extension

Experimental .NET Interactive formatters for SymbolicNet6 values. Loading the package adds notebook rendering for:

• MathNet.Symbolics.Expression and seq<Expression> as canonical FSSTL;
• FloatingPoint and IEnumerable<FloatingPoint> with explicit union-case identity;
• wrapped Deedle frames through Deedle.DotNet.Interactive.Extension;
• wrapped TorchSharp tensors through TorchSharp's formatter;
• FC / FC2 / FCI / FCC scalar, row, table and list shapes.

Load

#r "nuget: SymbolicNet6.Interactive.Extension, 0.1.0-alpha4"

open MathNet.Symbolics
open SymbolicNet6.Interactive.Extension

The package targets the independently maintained .NET 10 build of .NET Interactive used by this repository. It is focused on F# + SymbolicNet6 + Deedle notebook workflows; unrelated Polyglot Notebook behavior is not guaranteed.

FSSTL expressions

let expression =
    FsStl.parseExpressionOrThrow
        "VALUE(MACD,EXTERNAL_SERIES(\"MACD_30K\"))"

expression

seq {
    FsStl.parseExpressionOrThrow "VALUE(FAST,SMA(CLOSE,5))"
    FsStl.parseExpressionOrThrow "VALUE(SLOW,SMA(CLOSE,20))"
}

The final value of each cell is rendered as canonical FSSTL text.

FloatingPoint values and collections

FloatingPoint.Decimal 1.25M

[ FloatingPoint.Real 1.0
  FloatingPoint.Int 2
  FloatingPoint.Str "ES"
  FloatingPoint.Undef ]

Real 1.0, Decimal 1M, BR 1/1 and Int 1 retain their case identity instead of all appearing as a bare 1. Collection order is preserved and enumeration is bounded by Formatter.ListExpansionLimit.

open Microsoft.DotNet.Interactive.Formatting

Formatter.ListExpansionLimit <- 100
Formatter.RecursionLimit <- 8

Deedle Frame

FloatingPoint.Frame frame unwraps the frame and delegates HTML rendering to Deedle.DotNet.Interactive.Extension; its mutable limits therefore apply to direct and wrapped frames alike.

open Deedle.DotNet.Interactive.Extension

DeedleFormatterSettings.FrameRowLimit <- Some 100
DeedleFormatterSettings.FrameColumnLimit <- Some 30

FloatingPoint.Frame frame

FC timestamp rows

For a timestamp-keyed nested FC value shaped like A [ T(Map [ rowKey, T fieldMap ]) ], rowKey is the table row index and fieldMap keys are the columns. The row key is not duplicated as another data column.

Unknown or mixed FC shapes fall back to a bounded diagnostic view rather than throwing a formatter exception.

Explicit text conversion

FloatingPointFormatter.formatValue (FloatingPoint.Int 2)
FloatingPointFormatter.formatValues [ FloatingPoint.Real 1.0; FloatingPoint.Int 2 ]

FsStlFormatter.formatExpression expression
FsStlFormatter.formatScript [ expression ]

These functions are useful outside notebook output formatting and return the same bounded plain-text representation.