how to perform pinv with symbolic values without loosing precision comes from vpa function?

R =

 [4157066.11113704969163796320578974731594179835134484

 671429.665455965103663684268506862702153063263269903

 4774879.36997573773279084890656259223520006856252447]

% R 3x1 112 sym

   R=R_new

J=

   [ -0.36997573773279084890656259223520006856252447

     0.665455965103663684268506862702153063263269903

     0.36997573773279084890656259223520006856252447]

R_new=vpa(R- (pinv(J'*J)))

%it gives error because J is a symbolic, how can I perform pinv(J'*J) without loosing precision

%I tried R_new=vpa(R- (pinv(double(J'*J)))) but double conversion loses precision of J'*J

Answer 1

[Walter Roberson]

Which MATLAB version are you using? The current release can do pinv() of a symbolic matrix; see http://www.mathworks.com/help/symbolic/pinv.html

[sermet]

R 2012a 7.14 0739

[sermet]

is there anyway to perform pinv to fit above codes?