<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;"><font size="2">Dear Sir,<br>
I am a PhD student in physics in Algeria, I'd like to type my articles and reports in LaTeX format with the</font><font size="2"> <span style="font-weight: bold;">PSTricks</span> package</font>.<font size="2"><br>
Please,</font><span id="result_box" class="short_text"><span style="background-color: rgb(255, 255, 255);" title="je suis débutant"> <font size="2">I'm a beginner,</font></span></span><font size="2"> can you provide me the <span style="font-weight: bold;">PSTricks code</span>
(.tex) of the surfaces and volumes element in cartesian, cylindrical
(polar) and spherical coordinate systems attached in pdf file.</font><font size="2"><br></font><font size="2">Thanking you in
advance.<br>Best rega rds,<br>Boumediene <br><span><span title="Merci pour votre message,"></span></span></font>
<font size="2"><br></font></div><br>
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