"hàm hằng" meaning in Vietnamese

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "hàm số",
        "3": "hằng số",
        "t1": "function",
        "t2": "constant"
      },
      "expansion": "Blend of hàm số (“function”) + hằng số (“constant”)",
      "name": "blend"
    },
    {
      "args": {
        "1": "vi",
        "2": "hàm",
        "3": "hằng"
      },
      "expansion": "hàm + hằng",
      "name": "af"
    }
  ],
  "etymology_text": "Blend of hàm số (“function”) + hằng số (“constant”) or hàm + hằng.",
  "forms": [
    {
      "form": "函恆",
      "tags": [
        "CJK"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": "函恆"
      },
      "expansion": "hàm hằng • (函恆)",
      "name": "head"
    },
    {
      "args": {
        "1": "函恆"
      },
      "expansion": "hàm hằng • (函恆)",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Vietnamese blends",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Vietnamese nouns without classifiers",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "vi",
          "name": "Mathematics",
          "orig": "vi:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a constant function"
      ],
      "id": "en-hàm_hằng-vi-noun-1HEJowz1",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "constant function",
          "constant function"
        ]
      ],
      "raw_glosses": [
        "(mathematics) a constant function"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[haːm˨˩ haŋ˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːm˦˩ haŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːm˨˩ haŋ˨˩]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "word": "hàm hằng"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "vi",
        "2": "hàm số",
        "3": "hằng số",
        "t1": "function",
        "t2": "constant"
      },
      "expansion": "Blend of hàm số (“function”) + hằng số (“constant”)",
      "name": "blend"
    },
    {
      "args": {
        "1": "vi",
        "2": "hàm",
        "3": "hằng"
      },
      "expansion": "hàm + hằng",
      "name": "af"
    }
  ],
  "etymology_text": "Blend of hàm số (“function”) + hằng số (“constant”) or hàm + hằng.",
  "forms": [
    {
      "form": "函恆",
      "tags": [
        "CJK"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "vi",
        "2": "noun",
        "3": "",
        "4": "",
        "head": "",
        "tr": "函恆"
      },
      "expansion": "hàm hằng • (函恆)",
      "name": "head"
    },
    {
      "args": {
        "1": "函恆"
      },
      "expansion": "hàm hằng • (函恆)",
      "name": "vi-noun"
    }
  ],
  "lang": "Vietnamese",
  "lang_code": "vi",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Vietnamese blends",
        "Vietnamese compound terms",
        "Vietnamese entries with incorrect language header",
        "Vietnamese lemmas",
        "Vietnamese nouns",
        "Vietnamese nouns without classifiers",
        "Vietnamese terms with IPA pronunciation",
        "vi:Mathematics"
      ],
      "glosses": [
        "a constant function"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "constant function",
          "constant function"
        ]
      ],
      "raw_glosses": [
        "(mathematics) a constant function"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[haːm˨˩ haŋ˨˩]",
      "tags": [
        "Hà-Nội"
      ]
    },
    {
      "ipa": "[haːm˦˩ haŋ˦˩]",
      "tags": [
        "Huế"
      ]
    },
    {
      "ipa": "[haːm˨˩ haŋ˨˩]",
      "tags": [
        "Hồ-Chí-Minh-City"
      ]
    }
  ],
  "word": "hàm hằng"
}