"presolving" meaning in English

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        "3": "solving"
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        "2": "presolve",
        "3": "-ing"
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      "expansion": "presolve + -ing",
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  "etymology_text": "From pre- + solving or presolve + -ing.",
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      "expansion": "presolving (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2006, Jorge Nocedal, Stephen Wright, Numerical Optimization, →ISBN, page 385:",
          "text": "Presolving is beneficial regardless of what algorithm is used to solve the linear program; it is used both in simplex and interior-point codes.",
          "type": "quote"
        },
        {
          "ref": "2007, John W. Chinneck, Feasibility and Infeasibility in Optimization, →ISBN, page 96:",
          "text": "When presolving does detect infeasibility, but provides a poor explanation of its cause, it is often a good idea to re-run the solution with the presolver turned off so that one of the more advanced IIS isolation routines described later in this chapter can run instead.",
          "type": "quote"
        },
        {
          "ref": "2013, Michael Jünger, Gerhard Reinelt, Facets of Combinatorial Optimization, →ISBN:",
          "text": "In CPLEX, presolving capabilities were added with version 2.1 in 1993.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To transform a mathematical problem into an equivalent problem that is hopefully easier to solve."
      ],
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  "word": "presolving"
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{
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        "2": "pre",
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      "expansion": "pre- + solving",
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    {
      "args": {
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        "2": "presolve",
        "3": "-ing"
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      "expansion": "presolve + -ing",
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    }
  ],
  "etymology_text": "From pre- + solving or presolve + -ing.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "2006, Jorge Nocedal, Stephen Wright, Numerical Optimization, →ISBN, page 385:",
          "text": "Presolving is beneficial regardless of what algorithm is used to solve the linear program; it is used both in simplex and interior-point codes.",
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        },
        {
          "ref": "2007, John W. Chinneck, Feasibility and Infeasibility in Optimization, →ISBN, page 96:",
          "text": "When presolving does detect infeasibility, but provides a poor explanation of its cause, it is often a good idea to re-run the solution with the presolver turned off so that one of the more advanced IIS isolation routines described later in this chapter can run instead.",
          "type": "quote"
        },
        {
          "ref": "2013, Michael Jünger, Gerhard Reinelt, Facets of Combinatorial Optimization, →ISBN:",
          "text": "In CPLEX, presolving capabilities were added with version 2.1 in 1993.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To transform a mathematical problem into an equivalent problem that is hopefully easier to solve."
      ],
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        "uncountable"
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    }
  ],
  "word": "presolving"
}