Exponential Collocation Method for Solutions of Singularly Perturbed Delay Differential Equations

Figure 4

For (45), (a) graph of the approximate solutions for 𝜀=2⁻², 𝛿=2𝜀, and various values of 𝑁 and 𝑀, (b) comparison of the estimated error functions for 𝜀=2⁻², 𝛿=2𝜀, and various values of 𝑁 and 𝑀, (c) graph of the approximate solutions for 𝜀=2⁻²,  2⁻³, 2⁻⁵, 2⁻⁷, 𝛿=2𝜀, 𝑁=18, and 𝑀=19, and (d) graph of the estimated error functions for 𝜀=2⁻², 2⁻³, 2⁻⁵, and 2⁻⁷, 𝛿=2𝜀, 𝑁=18, and 𝑀=19.

(a)

(b)

(c)

(d)