"Walsh function" meaning in English

{
  "etymology_text": "Named after the American mathematician Joseph L. Walsh.",
  "forms": [
    {
      "form": "Walsh functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "Walsh function (plural Walsh functions)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Functions",
          "orig": "en:Functions",
          "parents": [
            "Algebra",
            "Calculus",
            "Geometry",
            "Mathematical analysis",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
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            "Fundamental"
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      ],
      "glosses": [
        "In harmonic analysis, any of a complete orthogonal set of functions that can be used to represent any discrete function."
      ],
      "id": "en-Walsh_function-en-noun-Q3KdbKp~",
      "links": [
        [
          "mathematics",
          "mathematics"
        ]
      ],
      "raw_glosses": [
        "(mathematics) In harmonic analysis, any of a complete orthogonal set of functions that can be used to represent any discrete function."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Walsh function"
}

{
  "etymology_text": "Named after the American mathematician Joseph L. Walsh.",
  "forms": [
    {
      "form": "Walsh functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Walsh function (plural Walsh functions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Functions",
        "en:Mathematics"
      ],
      "glosses": [
        "In harmonic analysis, any of a complete orthogonal set of functions that can be used to represent any discrete function."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ]
      ],
      "raw_glosses": [
        "(mathematics) In harmonic analysis, any of a complete orthogonal set of functions that can be used to represent any discrete function."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "Walsh function"
}