"subdifferential" meaning in English

{
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        "2": "sub",
        "3": "differential"
      },
      "expansion": "sub- + differential",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + differential.",
  "forms": [
    {
      "form": "subdifferentials",
      "tags": [
        "plural"
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  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2015, Amin Jalali, Lin Xiao, Maryam Fazel, “Variational Gram Functions: Convex Analysis and Optimization”, in arXiv:",
          "text": "We give a characterization of the associated subdifferential and the proximal operator, and discuss efficient optimization algorithms for some structured regularized loss-minimization problems using VGFs.",
          "type": "quote"
        }
      ],
      "glosses": [
        "subderivative"
      ],
      "id": "en-subdifferential-en-noun-64wL7kpc",
      "links": [
        [
          "mathematics",
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        [
          "subderivative",
          "subderivative#English"
        ]
      ],
      "raw_glosses": [
        "(mathematics) subderivative"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "subdifferential"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "differential"
      },
      "expansion": "sub- + differential",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + differential.",
  "forms": [
    {
      "form": "subdifferentials",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "subdifferential (plural subdifferentials)",
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  ],
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  "lang_code": "en",
  "pos": "noun",
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        }
      ],
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        "subderivative"
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        "(mathematics) subderivative"
      ],
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  "word": "subdifferential"
}