"Padé approximant" meaning in English

{
  "etymology_text": "The technique was developed around 1890 by Henri Padé.",
  "forms": [
    {
      "form": "Padé approximants",
      "tags": [
        "plural"
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  ],
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      "args": {},
      "expansion": "Padé approximant (plural Padé approximants)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "name": "Mathematics",
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      ],
      "glosses": [
        "The \"best\" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating."
      ],
      "id": "en-Padé_approximant-en-noun-nv5WkA70",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "approximation",
          "approximation"
        ],
        [
          "function",
          "function"
        ],
        [
          "rational function",
          "rational function"
        ],
        [
          "order",
          "order"
        ],
        [
          "power series",
          "power series"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The \"best\" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Padé approximant"
}

{
  "etymology_text": "The technique was developed around 1890 by Henri Padé.",
  "forms": [
    {
      "form": "Padé approximants",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Padé approximant (plural Padé approximants)",
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    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "English countable nouns",
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      "glosses": [
        "The \"best\" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "approximation",
          "approximation"
        ],
        [
          "function",
          "function"
        ],
        [
          "rational function",
          "rational function"
        ],
        [
          "order",
          "order"
        ],
        [
          "power series",
          "power series"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The \"best\" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Padé approximant"
}