Required order of accuracy | Gauss point location | weights |
---|---|---|
Second order | \( \frac{1}{2}\left(A+B\right) \) | 1 |
Third order | \( \frac{3-\sqrt{3}}{6}A+\frac{3+\sqrt{3}}{6}B \) | 0.5 |
\( \frac{3+\sqrt{3}}{6}A+\frac{3-\sqrt{3}}{6}B \) | 0.5 | |
Fourth order | \( \frac{5-\sqrt{15}}{10}A+\frac{5+\sqrt{15}}{10}B \) | \( \frac{5}{18} \) |
\( \frac{1}{2}\left(A+B\right) \) | \( \frac{8}{18} \) | |
\( \frac{5+\sqrt{15}}{10}A+\frac{5-\sqrt{15}}{10}B \) | \( \frac{5}{18} \) |