No. of Steps

Four-Step

$\max \Vert y_i-y\left(x_i\right)\Vert$

Four-Step

$\max \Vert z_i-z\left(x_i\right)\Vert$

Ehigie [5]

$\max \Vert y_i-y\left(x_i\right)\Vert$

Ehigie [5]

$\max \Vert z_i-z\left(x_i\right)\Vert$

125

$1.121\times {10}^{-11}$

$7.224\times {10}^{-11}$

$8.33\times {10}^{-06}$

$1.32\times {10}^{-6}$

250

$1.225\times {10}^{-13}$

$3.551\times {10}^{-13}$

$1.13\times {10}^{-07}$

$1.36\times {10}^{-08}$

500

$1.00\times {10}^{-15}$

$6.780\times {10}^{-15}$

$8.19\times {10}^{-12}$

$6.30\times {10}^{-12}$