Revision ba125e3b utility/matrix.h
| utility/matrix.h | ||
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double determinant() const |
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{
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if(N == 1) |
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return cell(0, 0); |
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float det = 0.0; |
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for(int i = 0; i < N; i++ ) |
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{
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Matrix<N-1> minor = minor_matrix(0, i); |
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det += (i%2==1?-1.0:1.0) * cell(0, i) * minor.determinant(); |
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} |
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// specialization for N == 1 given below this class |
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double det = 0.0, sign = 1.0; |
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for (int i = 0; i < N; ++i, sign = -sign) |
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det += sign * cell(0, i) * minor_matrix(0, i).determinant(); |
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return det; |
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} |
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| ... | ... | |
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}; |
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template<> |
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inline double Matrix<1>::determinant() const |
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{
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return cell(0, 0); |
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} |
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}; |
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#endif |
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