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Date: Tue, 25 Feb 2025 15:54:39 +0100
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From: kurtz le pirate <kurtzlepirate@free.fr>
Subject: Test FREE - 2025-02-25-15:54
Organization: compagnie de la banquise
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In mathematics, a saddle point or minimax point[1] is a point on the 
surface of the graph of a function where the slopes (derivatives) in 
orthogonal directions are all zero (a critical point), but which is not 
a local extremum of the function. An example of a saddle point is when 
there is a critical point with a relative minimum along one axial 
direction (between peaks) and a relative maximum along the crossing 
axis. However, a saddle point need not be in this form. For example, the 
function f(x,y) = x^2 + y^3 has a critical point at (0,0) that is a 
saddle point since it is neither a relative maximum nor relative 
minimum, but it does not have a relative maximum or relative minimum in 
the y-direction.




-- 
kurtz le pirate
compagnie de la banquise