$\Delta t$

${\Vert E\left(u\right)\Vert }_{\infty }$

${\Vert E\left(v\right)\Vert }_{\infty }$

0.020

$1.6121\times {10}^{-5}$

$2.2234\times {10}^{-5}$

0.0100

$2.8160\times {10}^{-6}$

$6.1446\times {10}^{-6}$

0.0050

$6.9332\times {10}^{-6}$

$2.8290\times {10}^{-6}$

0.0020

$7.7126\times {10}^{-7}$

$3.3328\times {10}^{-7}$

0.0010

$9.9268\times {10}^{-7}$

$4.8157\times {10}^{-7}$

0.0005

$3.1992\times {10}^{-7}$

$8.8126\times {10}^{-7}$