"preconditioner" meaning in English

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      "expansion": "pre- + conditioner",
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  "etymology_text": "From pre- + conditioner.",
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      "form": "preconditioners",
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  "lang_code": "en",
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          "ref": "2016, Tania Bakhos, Peter Kitanidis, Scott Ladenheim, Arvind K. Saibaba, Daniel Szyld, “Multipreconditioned GMRES for Shifted Systems”, in arXiv:",
          "text": "Furthermore, the multipreconditioned search space is shown to grow only linearly with the number of preconditioners.",
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      "glosses": [
        "A matrix that has a smaller condition number than another."
      ],
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          "condition number",
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      "raw_glosses": [
        "(mathematics) A matrix that has a smaller condition number than another."
      ],
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        "mathematics",
        "sciences"
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  "word": "preconditioner"
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  "etymology_text": "From pre- + conditioner.",
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          "text": "Furthermore, the multipreconditioned search space is shown to grow only linearly with the number of preconditioners.",
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        "A matrix that has a smaller condition number than another."
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        "(mathematics) A matrix that has a smaller condition number than another."
      ],
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        "mathematics",
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  "word": "preconditioner"
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