“parabolic coordinates”的概念、定义、翻译、参考文献-科学参考

单词	parabolic coordinates
释义	parabolic coordinates Mathematics Orthogonal curvilinear coordinates (s,t) in the half-plane y > 0 defined by $x = (s^{2} - t^{2}) / 2, y = s t (s, t > 0) .$ The curves where s or t are constant are parabolas. Laplace’s equation is invariant under a change to parabolic coordinates. Note that these coordinates arise from the complex, conformal map z ↦ z²/2 from the first quadrant to the upper half-plane.
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