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\documentclass[a4paper,10pt]{article}\usepackage{subcaption,graphicx}\usepackage{caption} % for captions under images/figures\usepackage[parfill]{parskip}\usepackage[a4paper, left=25mm, right=25mm, top=20mm, bottom=20mm]{geometry}\begin{table}\tiny\begin{tabular}{ | c | c | c | c | c | c | c | c | c | c | } \hlineITER. & ENERGY(OLD) & ENERGY(NEW) & DE & GRADMAX & GRADNORM & GRADRMS & STEPMAX & STEPLEN & STEPRMS \\ \hline15 & -887.92064320 & -887.92065570 & -0.00001250 & 0.00122979 & 0.00272241 & 0.00007778 & 0.03620021 & 0.04051140 & 0.01118788\\16 & -887.92065570 & -887.92066220 & -0.00000650 & 0.00109565 & 0.00230734 & 0.00006592 & 0.01613436 & 0.02231024 & 0.00618124\\17 & -887.92066220 & -887.92066380 & -0.00000160 & 0.00075061 & 0.00137919 & 0.00003941 & 0.07367523 & 0.07776748 & 0.00161132\\18 & -887.92066380 & -887.92066447 & -0.00000067 & 0.00026352 & 0.00058409 & 0.00001669 & 0.05152288 & 0.06094136 & 0.00145626\\ \hline\end{tabular}\end{table}