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  "Title": "Nonlinear Root Finding, Equilibrium and Steady-State Analysis of\nOrdinary Differential Equations",
  "Authors@R": "c(person(\"Karline\",\"Soetaert\", role = c(\"aut\", \"cre\"), \nemail = \"karline.soetaert@nioz.nl\"),\nperson(\"Alan C.\",\"Hindmarsh\", role = \"ctb\",\ncomment = \"files lsodes.f, sparse.f\"),\nperson(\"S.C.\",\"Eisenstat\", role = \"ctb\",\ncomment = \"file sparse.f\"),\nperson(\"Cleve\",\"Moler\", role = \"ctb\",\ncomment = \"file dlinpk.f\"),\nperson(\"Jack\",\"Dongarra\", role = \"ctb\",\ncomment = \"file dlinpk.f\"),\nperson(\"Youcef\", \"Saad\", role = \"ctb\",\ncomment = \"file dsparsk.f\"))",
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  "Author": "Karline Soetaert [aut, cre], Alan C. Hindmarsh [ctb] (files\nlsodes.f, sparse.f), S.C. Eisenstat [ctb] (file sparse.f),\nCleve Moler [ctb] (file dlinpk.f), Jack Dongarra [ctb] (file\ndlinpk.f), Youcef Saad [ctb] (file dsparsk.f)",
  "Description": "Routines to find the root of nonlinear functions, and to\nperform steady-state and equilibrium analysis of ordinary\ndifferential equations (ODE). Includes routines that: (1)\ngenerate gradient and jacobian matrices (full and banded), (2)\nfind roots of non-linear equations by the 'Newton-Raphson'\nmethod, (3) estimate steady-state conditions of a system of\n(differential) equations in full, banded or sparse form, using\nthe 'Newton-Raphson' method, or by dynamically running, (4)\nsolve the steady-state conditions for uni-and multicomponent\n1-D, 2-D, and 3-D partial differential equations, that have\nbeen converted to ordinary differential equations by numerical\ndifferencing (using the method-of-lines approach). Includes\nfortran code.",
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        "rootSolve"
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      "title": "Estimates the gradient matrix for a simple function",
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