In 2D input it is possible to represnet

diff(f,x) as d/dx f

Is it possible to do

diff(f,x,x) as d^2/(dx)^2 f somehow?

I need to plot solid sqaures and include the figure in a paper.

The plotdevices jpg and ps do NOT support this. Is there a special way to put solid symbols in these? What plot devices support solid symbols?

I have a maple worksheet with 2d input:

> for i to 10 do f := proc (x) options operator, arrow; x^2 end proc; f(x) end do;

of course it looks "pretty" in the actual worksheet.

 

When I export this to Latex I get the standard stuff and this:

 

\begin{maplegroup}

\begin{mapleinput}

\mapleinline{active}{2d}{for i to 10 do f := proc (x) options operator, arrow; x^2 end proc; f(x) end do; -1}{\[\]}

Can anyone help me convert this outdated maple code into something current? Particularity I need help finding the equivalent command to "stats:-empirical" as I can't even find documentation for it.

 

with(stats): with(linalg): with(StringTools):

P1:=matrix([[.6,.3,.1],[.4,.5,.1],[.3,.4,.3]]);

j:=1:  res:="S":

for i to 50 do  

    j:=random[empirical[op(convert(row(P1,j),list))]](): 

I'm running OSX and Maple 14. Now when I do ]>? mod for example it (maple) is launching a Maplet (which crashes) in order to do something (perhaps bring up a Java version of the docs?). How do I disable this and get the old (text based) man pages back?