"純虚指数関数" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語 名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "じゅんきょしすうかんすう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "複素解析"
    },
    {
      "word": "複素"
    },
    {
      "word": "指数関数"
    },
    {
      "word": "三角関数"
    },
    {
      "word": "cis"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日本語 幾何学",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "日本語 関数",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "cis,θ:= cos θ+i sin θと定義される複素関数。オイラーの等式よりcis,θ=eⁱᶿが成り立つ。"
      ],
      "id": "ja-純虚指数関数-ja-noun-FtRL0rAs",
      "raw_tags": [
        "関数"
      ],
      "topics": [
        "geometry"
      ]
    }
  ],
  "word": "純虚指数関数"
}

{
  "categories": [
    "日本語",
    "日本語 名詞"
  ],
  "forms": [
    {
      "form": "じゅんきょしすうかんすう"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "related": [
    {
      "word": "複素解析"
    },
    {
      "word": "複素"
    },
    {
      "word": "指数関数"
    },
    {
      "word": "三角関数"
    },
    {
      "word": "cis"
    }
  ],
  "senses": [
    {
      "categories": [
        "日本語 幾何学",
        "日本語 関数"
      ],
      "glosses": [
        "cis,θ:= cos θ+i sin θと定義される複素関数。オイラーの等式よりcis,θ=eⁱᶿが成り立つ。"
      ],
      "raw_tags": [
        "関数"
      ],
      "topics": [
        "geometry"
      ]
    }
  ],
  "word": "純虚指数関数"
}