?? quadtriangleelementarea.m
字號:
function y = QuadTriangleElementArea(x1,y1,x2,y2,x3,y3)
%QuadTriangleElementArea This function returns the area of the
% quadratic triangular element whose first
% node has coordinates (x1,y1), second
% node has coordinates (x2,y2), and
% third node has coordinates (x3,y3).
y = (x1*(y2-y3) + x2*(y3-y1) + x3*(y1-y2))/2;
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