"subdiagonal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "diagonal"
      },
      "expansion": "sub- + diagonal",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + diagonal",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "subdiagonal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "56 44",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "59 41",
          "kind": "other",
          "name": "English terms prefixed with sub-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2010, Martin Aigner with Günter M. Ziegler, chapter 16, in Proofs from THE BOOK, 4th edition, Delhi, India: Springer (India), published 2013, page 97",
          "text": "(3) From R, we obtain the set of points #x5C;mathbb#x7B;R#x7D;#x5C;tbinom#x7B;n#x7D;#x7B;2#x7D; whose coordinates are the subdiagonal entries of the corresponding matrices:\nS#x3A;#x3D;#x5C;#x7B;(#x5C;mathbf#x7B;x#x7D;#x5C;mathbf#x7B;x#x7D;ᵀ)#x5F;#x7B;i#x3E;j#x7D;#x3A;#x5C;mathbf#x7B;x#x7D;#x5C;mathbf#x7B;x#x7D;ᵀ#x5C;inR#x5C;#x7D;.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix."
      ],
      "id": "en-subdiagonal-en-adj-ri6HkD3-",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "square matrix",
          "square matrix"
        ],
        [
          "main diagonal",
          "main diagonal"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "subdiagonal"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "diagonal"
      },
      "expansion": "sub- + diagonal",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + diagonal",
  "forms": [
    {
      "form": "subdiagonals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "subdiagonal (plural subdiagonals)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The diagonal of a matrix that lies directly below and to the left of the main diagonal."
      ],
      "id": "en-subdiagonal-en-noun-3nVqSxBk",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "diagonal",
          "diagonal"
        ],
        [
          "matrix",
          "matrix"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The diagonal of a matrix that lies directly below and to the left of the main diagonal."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "subdiagonal"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with sub-",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "diagonal"
      },
      "expansion": "sub- + diagonal",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + diagonal",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "subdiagonal (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English terms with quotations",
        "en:Mathematics"
      ],
      "examples": [
        {
          "ref": "2010, Martin Aigner with Günter M. Ziegler, chapter 16, in Proofs from THE BOOK, 4th edition, Delhi, India: Springer (India), published 2013, page 97",
          "text": "(3) From R, we obtain the set of points #x5C;mathbb#x7B;R#x7D;#x5C;tbinom#x7B;n#x7D;#x7B;2#x7D; whose coordinates are the subdiagonal entries of the corresponding matrices:\nS#x3A;#x3D;#x5C;#x7B;(#x5C;mathbf#x7B;x#x7D;#x5C;mathbf#x7B;x#x7D;ᵀ)#x5F;#x7B;i#x3E;j#x7D;#x3A;#x5C;mathbf#x7B;x#x7D;#x5C;mathbf#x7B;x#x7D;ᵀ#x5C;inR#x5C;#x7D;.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "square matrix",
          "square matrix"
        ],
        [
          "main diagonal",
          "main diagonal"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Said of an entry of a square matrix: that it lies anywhere in the lower triangular area below the main diagonal of the matrix."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "subdiagonal"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with sub-",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "diagonal"
      },
      "expansion": "sub- + diagonal",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + diagonal",
  "forms": [
    {
      "form": "subdiagonals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "subdiagonal (plural subdiagonals)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Mathematics"
      ],
      "glosses": [
        "The diagonal of a matrix that lies directly below and to the left of the main diagonal."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "diagonal",
          "diagonal"
        ],
        [
          "matrix",
          "matrix"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The diagonal of a matrix that lies directly below and to the left of the main diagonal."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "subdiagonal"
}