@acer 

Thank you so much

@Scot Gould 

Thanks a lot.

@sand15 

Oh great!
Thank you for this information.

Thanking you,
Debendra

@sand15
A vector x is called the left eigenvector of the given matrix A corresponding to eigenvalue λ, if  xT A = λ x . 

Right eigenvector is called as eigenvector.

I got the plot by using the following code in Mpale 2022.

restart;
with(plots);
P2 := plot3d(-t^2 + x, t = 0 .. 20, x = 0 .. 400, labels = ['t', 'x', 'rho'], labelfont = [Times, 15], viewpoint = "circleleft", colorscheme = ["ygradient", ["Green", "Purple", "Blue", "Red", "BlueViolet"]]);
plotsetup(ps, plotoutput = "P2");
print(P2);

Then, I tried the following code in the overleaf. However, I did not get the desired result.

\documentclass[11pt]{article}
\usepackage{graphicx}
\usepackage{epsfig}

\begin{document}
Plot obtained from Maple 2022. \\

\includegraphics[width=0.9\textwidth]{P2.eps}
\end{document}

Kindly suggest to me what to do.
Thanks, Deb

@nm 
Could you please tell me where to use this code?

epspdf filename.ps
pdfcrop --margins 10  filename.pdf  filename.pdf  

Is this maple code or latex code? Kindly could you please tell us in details.
 

@dharr
Thank you for your valuable feedback.