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69 lines
1.8 KiB
69 lines
1.8 KiB
void func() {
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}
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// **ABC**
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void func() { }
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// *INDENT-ON*
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void func() {
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}
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/**
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* Function to solve for roots of a generic quartic polynomial of the
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* following form:
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* \verbatim
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p(x) = a * x^4 + b * x^3 + c * x^2 + d * x + e,
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where a, b, c, d, and e are real coefficients
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* \endverbatim
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*
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* This object's tolerance defines a threshold for root solutions
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* above which iterative methods will be employed to achieve the
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* desired accuracy
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*
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* \verbatim - this should cause the following line to not wrap due to cmt_width
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* Upon success, the roots array contains the solution to the polynomial p(x) = 0
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* \endverbatim
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* + Return value on output:
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* - 0, if an error occurs (invalid coefficients)
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* - 1, if all roots are real
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* - 2, if two roots are real and two roots are complex conjugates
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* - 3, if the roots are two pairs of complex conjugates
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*/
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int solve(double a,
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double b,
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double c,
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double d,
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double e,
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std::complex<double> roots[4]);
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/**
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* Function to solve for roots of a generic quartic polynomial of the
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* following form:
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*
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*
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* p(x) = a * x^4 + b * x^3 + c * x^2 + d * x + e, where a, b, c, d,
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* and e are real coefficients
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*
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* Upon success, root1, root2, root3, and root4 contain the solution
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* to the polynomial p(x) = 0
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* + Return value on output:
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* - 0, if an error occurs (invalid coefficients)
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* - 1, if all roots are real
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* - 2, if two roots are real and two roots are complex conjugates
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* - 3, if the roots are two pairs of complex conjugates
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*/
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/* **ABC** */
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int solve(double a,
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double b,
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double c,
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double d,
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double e,
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std::complex<double> &root1,
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std::complex<double> &root2,
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std::complex<double> &root3,
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std::complex<double> &root4);
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/* ??DEF?? */
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