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 12

Values for 𝑣(𝑡) for the second iteration by Variational Iteration Method (VIM) and Modified Variational Iteration Method (MVIM) compared with exact values of 𝑣(𝑡) in 0.0001≤𝑡≤0.1.

𝑡	VIM 𝑣2	MVIM 𝑣2	Exact 𝑣
0.0001	4.8355100352656666∗10^−8	4.835591010596274∗10^−8	0.4835591013∗10^−7
0.001	3.6660943322046335∗10^−6	3.670267991501275∗10^−6	0.3670275606∗10^−5
0.01	0.00008872285001837454	0.00008976891925882233	0.8978912350∗10^−4
0.1	0.0009324013827985804	0.0009850573565074391	0.9879731668∗10^−3