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 Author Comment/Response Walter MERLAT 07/20/99 7:49pm Hi! I am desperately trying to plot several functions --listed in a variable of type List-- with the Plot command. as a Mathematica beginner, i thought it would be straigtforward, ... but I am facing a strange problem related to lists of functions and the way Plot handles them. let's define a list of two functions: l := {Cos[x], Sin[x]} now let's try to plot the two functions on the same graphics: Plot[l, {x, 0, 10}] ...well it doesn't work! Mathematica displays a series of messages:'' Plot::''plnr'': l is not a machine-size real number at x = 4.16666666666666607`*^-7.'' and then an empty graphics Can someone explain why this doesn't work?? note that the following commands work: Plot[{Cos[x], Sin[x]}, {x, 0, 10}] Plot[{First[l], Last[l]}, {x, 0, 10}] ... even though {Cos[x], Sin[x]} == {First[l], Last[l]} == l !!!!! as in general, my list of functions is of a priori unknown size, i can't use the trick with First and Last. any idea on how to plot my list of functions? Thanks a lot for your time Walter URL: ,

 Subject (listing for 'problem when Plotting a List of functions...') Author Date Posted problem when Plotting a List of functions... Walter MERLAT 07/20/99 7:49pm Re: problem when Plotting a List of functions... Forum Modera... 07/26/99 00:00am Re: problem when Plotting a List of functions... Bruno 07/27/99 11:53am Re: problem when Plotting a List of functions... Walter MERLAT 07/27/99 12:49pm
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