Convert symbolic solution into real number?

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Dexter
Dexter el 17 de Jul. de 2011
syms ysol;
POI_mat = solve( 'ab1(1)*ysol^2 + ab1(2)*ysol +ab1(3) = ab2(1)*ysol +ab2(2)' );
I would like to convert my solution within POI_mat into a real number so I can use it to compute a point of intersection. Right now it returns only symbolic solutions, how can I convert this?

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Paulo Silva
Paulo Silva el 17 de Jul. de 2011
double(POI_mat)
or
vpa(POI_mat)

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