The Semianalytical Solutions for Stiff Systems of Ordinary Differential Equations by Using Variational Iteration Method and Modified Variational Iteration Method with Comparison to Exact Solutions

Table 4

Values for 𝑣(𝑡) for the fifteenth iteration by Variational Iteration Method (VIM) and Modified Variational Iteration Method (MVIM) compared with exact values of 𝑣(𝑡).

𝑡	VIM 𝑣15	MVIM 𝑣15	Exact 𝑣
0	8	7.999999999999999	8.000000000000002
1	1.2433560287025747	1.2433560287025707	1.243356028702570
2	0.1903147111678612	0.19031471116472698	0.19031471116472704
3	0.02913046998493388	0.029130469932580193	0.0291304699325802
4	0.004458847727178969	0.004458847518489839	0.00445884751848984
5	0.0006824927138448505	0.0006824922920622653	0.000682492292062266