Find area of triangle given points p1, p2, and p3 where the y-axes is w degrees counter clockwise from the x-axes.
For example:
p1=[1 2];
p2=[4 5];
p3=[-3 -8];
w=30;
area=4.5;%output
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If someone is having trouble: the problem coordinates are given in the euclidean orthonormal basis, and we must find the area in the oblique space and not the other way around.