k1 = 1/4;
k2 = 1/4;
k3 = 1/2;
k4 = 0;
k5 = 3;
k6 = 3/2;
k7 = 1;
k8 = 7/10;
k9 = 1/4;
k10 = 1/1000;
k11 = 1;
k12 = 9/8;
k13 = 0;
k14 = 1/1000;
k15 = 1;