Answer Happy

Posted: **Tue May 17, 2022 8:26 pm**

: The Coordinate Curves Of A Parametrization X U V Constitute A Tchebyshef Net If The Lengths Of The Opposite Sides Of A 1 (36.31 KiB) Viewed 48 times

The coordinate curves of a parametrization x(u, v) constitute a Tchebyshef net if the lengths of the opposite sides of any quadrilateral formed by them are equal. Show that a necessary and sufficient condition for this is ДЕ = OG ди = 0. ov