<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:14pt"><div>Dear PSTricks folks,</div><div><br></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;">Consider the following code,</div><div style="color: rgb(0, 0, 0); font-size: 19px; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="background-color: transparent;">\documentclass[preview,border=24pt]{standalone}</div><div
style="background-color: transparent;">\usepackage{pst-plot,pst-eucl,pgfmath}</div><div style="background-color: transparent;"><br></div><div style="background-color: transparent;">\psset{algebraic,plotpoints=100,PosAngle=135}</div><div style="background-color: transparent;">\def\f#1{x+sin(2*Pi*x/2+#1*Pi)/3}</div><div style="background-color: transparent;"><br></div><div style="background-color: transparent;">\begin{document}</div><div style="background-color: transparent;">\begin{pspicture}(6,6)</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psplot[linecolor=red]{0}{6}{\f0}<span class="Apple-tab-span" style="white-space:pre"> </span>\psplot[linecolor=blue]{0}{6}{\f1}</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\foreach \x[count=\i from 2] in {1,...,6}{\pstGeonode(\x,\x){E_\i}}</div><div style="background-color:
transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\psset{yunit=6}</div><div style="background-color: transparent;"><span class="Apple-tab-span" style="white-space:pre"> </span>\multido{\i=0+1}{2}{\uput[180](0,\i){\i}\psline(0,\i)(6,\i)}</div><div style="background-color: transparent;">\end{pspicture}</div><div style="background-color: transparent;">\end{document}</div><div><br></div><div><br></div><div>By default pstricks loads pgffor to allow \foreach. However, "coun=\i from 2" which is a part of "\foreach" needs pgfmath.</div><div>So my question is why doesn't pstricks core also load pgfmath by default?</div><div><br></div><div><br></div><div>Thank you in advance.</div><div><br></div><div><br></div><div>Best regards,</div><div><br></div><div><br></div><div>The Last Error</div><div>(http://tex.stackexchange.com/users/19356)</div><div><br></div></div></body></html>