ℝ in 跨语言

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Etymology: 在《Stetigkeit und irrationale Zahlen》（1872年）中理查德·戴德金使用R来表示有理数，用ℜ来表示实数。黑板粗体的使用可追溯回20世纪60年代。

[Show JSON for post-processed kaikki.org data shown on this page ▼] [Hide JSON for post-processed kaikki.org data shown on this page ▲]

{
  "categories": [
    {
      "kind": "other",
      "name": "跨語言符號",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "跨語言詞元",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "raw_tags": [
        "英语"
      ],
      "word": "ℝ-order tree"
    }
  ],
  "etymology_text": "在《Stetigkeit und irrationale Zahlen》（1872年）中理查德·戴德金使用R来表示有理数，用ℜ来表示实数。黑板粗体的使用可追溯回20世纪60年代。",
  "lang": "跨语言",
  "lang_code": "mul",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "跨語言 數學",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "包含所有实数的集。"
      ],
      "id": "zh-ℝ-mul-noun-0-Vy8Mz1",
      "topics": [
        "mathematics"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "跨語言 數學",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "实数轴。"
      ],
      "id": "zh-ℝ-mul-noun-1-giFAR8",
      "topics": [
        "mathematics"
      ]
    }
  ],
  "word": "ℝ"
}

[Show JSON for raw wiktextract data ▼] [Hide JSON for raw wiktextract data ▲]

{
  "categories": [
    "跨語言符號",
    "跨語言詞元"
  ],
  "derived": [
    {
      "raw_tags": [
        "英语"
      ],
      "word": "ℝ-order tree"
    }
  ],
  "etymology_text": "在《Stetigkeit und irrationale Zahlen》（1872年）中理查德·戴德金使用R来表示有理数，用ℜ来表示实数。黑板粗体的使用可追溯回20世纪60年代。",
  "lang": "跨语言",
  "lang_code": "mul",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "跨語言 數學"
      ],
      "glosses": [
        "包含所有实数的集。"
      ],
      "topics": [
        "mathematics"
      ]
    },
    {
      "categories": [
        "跨語言 數學"
      ],
      "glosses": [
        "实数轴。"
      ],
      "topics": [
        "mathematics"
      ]
    }
  ],
  "word": "ℝ"
}

This page is a part of the kaikki.org machine-readable 跨语言 dictionary. This dictionary is based on structured data extracted on 2024-07-06 from the zhwiktionary dump dated 2024-07-01 using wiktextract (ad53249 and b4eb25b). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.

"ℝ" meaning in 跨语言

Noun