Function: noun
Date: 1856
: the plane through a point of a surface that contains the tangent lines to all the curves on the surface through the same point
Function: noun
Date: 1856
: the plane through a point of a surface that contains the tangent lines to all the curves on the surface through the same point
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012