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48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
#ifndef FILE_POLYNOMIAL
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#define FILE_POLYNOMIAL
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/* *************************************************************************/
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/* File: polynomial.hh */
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/* Author: Joachim Schoeberl */
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/* Date: 25. Nov. 99 */
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/* *************************************************************************/
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namespace netgen
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{
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class QuadraticPolynomial1V
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{
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double c, cx, cxx;
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public:
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QuadraticPolynomial1V (double ac, double acx, double acxx);
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double Value (double x);
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double MaxUnitInterval ();
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};
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class LinearPolynomial2V
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{
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double c, cx, cy;
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public:
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LinearPolynomial2V (double ac, double acx, double acy);
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friend class QuadraticPolynomial2V;
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};
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class QuadraticPolynomial2V
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{
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double c, cx, cy, cxx, cxy, cyy;
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public:
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QuadraticPolynomial2V ();
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QuadraticPolynomial2V (double ac, double acx, double acy,
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double acxx, double acxy, double acyy);
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void Square (const LinearPolynomial2V & lp);
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void Add (double lam, const QuadraticPolynomial2V & qp);
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double Value (double x, double y);
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// double MinUnitSquare ();
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double MaxUnitSquare ();
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double MaxUnitTriangle ();
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};
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} // namespace netgen
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#endif
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