"invex" meaning in English

{
  "etymology_text": "Introduced by Morgan A. Hanson in 1981 as a generalization of convex.",
  "head_templates": [
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      "expansion": "invex (not comparable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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      "derived": [
        {
          "word": "invexity"
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      ],
      "glosses": [
        "A differentiable function ƒ from Rⁿ to R is invex if there exists a vector valued function g such that f(x)-f(u)≥g(x,u)·∇f(u),, for all x and u."
      ],
      "id": "en-invex-en-adj-oiOlpcm6",
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      "raw_glosses": [
        "(mathematics) A differentiable function ƒ from Rⁿ to R is invex if there exists a vector valued function g such that f(x)-f(u)≥g(x,u)·∇f(u),, for all x and u."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "invex"
      ]
    }
  ],
  "word": "invex"
}

{
  "derived": [
    {
      "word": "invexity"
    }
  ],
  "etymology_text": "Introduced by Morgan A. Hanson in 1981 as a generalization of convex.",
  "head_templates": [
    {
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      "expansion": "invex (not comparable)",
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  "lang_code": "en",
  "pos": "adj",
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    {
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      "glosses": [
        "A differentiable function ƒ from Rⁿ to R is invex if there exists a vector valued function g such that f(x)-f(u)≥g(x,u)·∇f(u),, for all x and u."
      ],
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      "raw_glosses": [
        "(mathematics) A differentiable function ƒ from Rⁿ to R is invex if there exists a vector valued function g such that f(x)-f(u)≥g(x,u)·∇f(u),, for all x and u."
      ],
      "tags": [
        "not-comparable"
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        "mathematics",
        "sciences"
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        "invex"
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  ],
  "word": "invex"
}