Para_transform_12d.m

function Yt=Para_transform_12d(Y)   
Yt=Y;
    Yt(2)=exp(Y(2));
    Yt(3)=exp(Y(3));
    Yt(4)=sqrt(Y(4)^2+Y(5)^2);
    Yt(5)=mod(atan(Y(5)/Y(4))+pi*(Y(4)<0),2*pi);
    Yt(6)=mod(Y(6)-Yt(5),2*pi);
    Yt(2+5)=exp(Y(2+5));
    Yt(3+5)=exp(Y(3+5));
    Yt(4+5)=sqrt(Y(4+5)^2+Y(5+5)^2);
    Yt(5+5)=mod(atan(Y(5+5)/Y(4+5))+pi*(Y(4+5)<0),2*pi);
    Yt(6+5)=mod(Y(6+5)-Yt(5+5),2*pi);
    Yt(7+5)=exp(Y(7+5));