0 mm 1 0 0 0 mm 0 1 0 200000 GPa/m 0 0 GPa/m 200000 GPa/m 0 0 GPa/m 200000 GPa/m 0 0 GPa/m 0 mm -z 0 x 34.5*(1-cos(pi*t/.75))/2 0 1 0 0 mm 1 0 0 0 mm 0 0 1 0 mm 0 0 1