[Maxima] ev, subst, or at?
Jorge.Calvo at avemaria.edu
Thu Jul 5 16:13:03 CDT 2012
What is the difference between the commands ev, subst, and at? If I need to substitute a numerical value for a free variable in a simple formula, can they be used interchangeably? This appears to be the case in the examples below, but I want to make sure I am not missing something subtle.
(%i14) ev(x^2 + 7*y, x=6);
(%i15) subst(x=6, x^2 + 7*y);
(%i16) at(x^2 + 7*y, x=6);
Thanks for your help!
Dr. Jorge Alberto Calvo
Associate Professor of Mathematics
Department of Mathematics and Physics
Ave Maria University
Phone: (239) 280-1608
Email: jorge.calvo at avemaria.edu
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