0 mm 1 0 0 0 mm 0 0 1 0 mm 0 1 0 0 mm 0 0 1 0 mm 0 1 0 10*(heaviside(0.5-t)*unittriangle(0.48,t-.25)/4.166666-heaviside(t-.5)*unittriangle(.48,t-.75)/4.166666) 1 0 0 200*(heaviside(0.5-t)*unittriangle(0.48,t-.25)/4.166666-heaviside(t-.5)*unittriangle(.48,t-.75)/4.166666) 0 N 0 N