Following is the beginning portion of the Excel Worksheet calculating a linear vibration system
of single degree of freedom.If you copy this sample to a Excel Worksheet,you can read the calculating formulas
as well as the feagures of calculation results.
		Parameter;
		dt	△t	F0(N)	M(Kg)	K(N/m)	C(N*s/m)
		0.0001	0.05	0	253.6	1,000,000	1000
No.		t	F(t)	d2X(t)/dt2=	dX(t)/dt=	X(t)=
			@IF(+C9<$D$3,	(+D9-$G$3*G9
			+$E$3/$D$3*C9,	-$H$3*F9)/$F$3	+F9+E9*$C$3	+G9+F9*$C$3
			+$E$3)
0	0	0	0	0	0	0.01
1		0.0001	0	-39.43217666	0	0.01
2		0.0002	0	-39.41662769	-0.003943218	0.01
3		0.0003	0	-39.39952996	-0.00788488	0.009999606
4		0.0004	0	-39.38088469	-0.011824833	0.009998817
5		0.0005	0	-39.36069316	-0.015762922	0.009997635
6		0.0006	0	-39.33895672	-0.019698991	0.009996058
7		0.0007	0	-39.31567677	-0.023632887	0.009994089
8		0.0008	0	-39.29085478	-0.027564455	0.009991725
9		0.0009	0	-39.26449228	-0.03149354	0.009988969
10	0.001	0.001	0	-39.23659084	-0.035419989	0.009985819
11		0.0011	0	-39.20715213	-0.039343648	0.009982277