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Dc (computer program): History & Measurement

dc (desk calculator) is a cross-platform reverse-Polish calculator which supports arbitrary-precision arithmetic. It was written by Lorinda Cherry and Robert Morris at Bell Labs. dc is one of the oldest Unix utilities, preceding even the development of the C programming language. Like other utilities of that vintage, it has a powerful set of features but…

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Dc (computer program) topic overview

The analysis highlights History and Measurement as prominent areas in the source structure around Dc (computer program).

Related topics
31
Source areas
6
Connected nodes
37
Extracted relationships
6
Concept neighborhoods
11
Bridge connections
37

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Examples · 12 topics
Overview · 10 topics
Basic operations · 3 topics
History · 2 topics
Input/output · 2 topics
Language features · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Developers
Various open-source and commercial developers
Operating system
Unix, Unix-like, Plan 9
Original authors
Lorinda Cherry, Robert Morris (AT&T Bell Laboratories)
Platform
Cross-platform
Type
Command
Written in
B

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History

Basic operations

Input/output

Language features

Examples

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Dc (computer program) connects Entity context

The extracted context around Dc (computer program) shows recurring relationship patterns in the source. For example, Dc (computer program) → Various open-source and commercial developers Another extracted example is Dc (computer program) → Unix, Unix-like, Plan 9. Use these groups to spot repeated connection types before inspecting the individual relationships.

Dc (computer program)

Top relations

Developers · 1
Dc (computer program) → Various open-source and commercial developers
Operating system · 1
Dc (computer program) → Unix, Unix-like, Plan 9
Original authors · 1
Dc (computer program) → Lorinda Cherry, Robert Morris (AT&T Bell Laboratories)
Platform · 1
Dc (computer program) → Cross-platform
Type · 1
Dc (computer program) → Command
Written in · 1
Dc (computer program) → B

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

dc stack input top line value number program command output also macro one language written macros conditionals note commands two

Dc (computer program) relationships Subject–Predicate–Object triples

TTTA extracted 6 structured relationships around Dc (computer program). Examples in this analysis include Dc (computer program) → Developers → Various open-source and commercial developers and Dc (computer program) → Operating system → Unix, Unix-like, Plan 9. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Dc (computer program)DevelopersVarious open-source and commercial developers1.00infobox
Dc (computer program)Operating systemUnix, Unix-like, Plan 91.00infobox
Dc (computer program)Original authorsLorinda Cherry, Robert Morris (AT&T Bell Laboratories)1.00infobox
Dc (computer program)PlatformCross-platform1.00infobox
Dc (computer program)TypeCommand1.00infobox
Dc (computer program)Written inB1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Dc (computer program) bring nearby vocabulary together. In this analysis, examples include Line, Also and Input. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Dc (computer program)
    • Line
    • Also
    • Input
    • Language
    • Commands
    • Output
    • Program
    • Stack
    • Programming
    • Top
    • Arbitrary
    • Example
  • dc (computer program)
    • Written
    • Line
    • Also
    • Input
    • Language
    • Commands
    • Output
    • Program
    • Stack
    • Programming
    • Top
    • Arbitrary
  • input/output
    • Output
    • Stack
    • Value
    • Line
    • Also
    • Command
    • Example
    • Top
    • Language
    • Program
    • Number
    • File
  • c programming language
    • Language
    • Programming
    • Unix
    • Implementation
    • Written
    • Bc
    • Also
    • Output
    • Input
    • Value
    • Example
    • File
  • language features
    • Programming
    • Unix
    • Implementation
    • Written
    • Also
    • Bc
    • Output
    • Input
    • Value
    • File
    • Registers
    • Example
  • bell labs
    • Unix
    • Written
    • Even
    • Language
    • Program
    • File
    • Programming
    • Registers
    • Macros
    • Numbers
    • Conditionals
    • Dc
  • unix
    • Language
    • Written
    • Even
    • File
    • Programming
    • Registers
    • Macros
    • Numbers
    • Conditionals
    • Also
    • Command
    • Output
  • arithmetic precision
    • Arbitrary
    • Used
    • Calculator
    • Example
    • Macros
    • Precision
    • Conditionals
    • Note
    • Result
    • Values
    • Number
    • Dc

Connections between topic areas Semantic bridges

For Dc (computer program), one of the stronger structural bridges in this analysis connects Dc (computer program) with Examples. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Dc (computer program) — Examples · splits 25 ⟂ 13
Dc (computer program) — Overview · splits 27 ⟂ 11
Dc (computer program) — Basic operations · splits 34 ⟂ 4
Dc (computer program) — History · splits 35 ⟂ 3
Dc (computer program) — Input/output · splits 35 ⟂ 3
Dc (computer program) — Language features · splits 35 ⟂ 3

Map overview Semantic statistics

Dc (computer program)

Nodes38
Edges37
Triples6
Avg. degree1.95
Density0.052632
Components1

Source & methodology

TTTA analyzes the structure around Dc (computer program) to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Dc (computer program) · EN edition · Analysis: TopicsToTalkAbout

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