@fereydoon_shekofte Do you prefer stack exchange over mapleprimes?  Why wouldn't you just come here?

A quick thought, no time to think right now - The number of characters in the book should be ones that speak and so after the quotes we could search for the key words (asked, said, cried, yelled, shouted, answered, roared, replied etc.. ) and capture the names following such key words into a set.

In the help files plot,options I did find this note I've copied below, so it seems the standard interface is adhering to classic interface rules.

axiscoordinates
  axiscoordinates=t
  The coordinate system used for display of the axes. The value t can be either polar or cartesian. By default, Cartesian axes are displayed. If t is polar, then radial and angular axes are generated. This option is used together with the coords=polar option.
Note: This option is only available in the Standard interface.  In the Classic interface, the coordinates are always Cartesian.

I always see bad things happen when porting occurs (let's not do that) information is always lost. 

Your point is well taken (re:diluting breadth and depth of information)  I much prefer mapleprimes, and unless the forum format for a new maple forum is outstanding (stack exchange is sub par in my opinion) then I'm only going to follow one source.  A Maple forum on Stack Exchange could very well survive but Mathematica has 10x the number of users and so it's not a wonder why there's a main one and one on Stack. 

My guess is the reason a Maple forum attempt on stack exchange failed before was because of lack of interest.  My main question is ... What is the driving force for a forum for Maple on Stack Exchange anyway? 

I prefer mapleprimes, but I may check it out once in a while.  IMHO the forum format at stack exchange is aweful (the current mapleprimes, as some people mentioned, appears to be modelled after stack exchange).  I believe this modelling change was due to the type of programming change that was made when new programmers took over mapleprimes.  I will add an example of my preffered forum format when I find it (the one I had in mind changed it's formatting as well).

***edit add*** not exactly but better, this forum format is ok in my opinion http://orbiter-forum.com/

@acer It would also work without the colon dash, so long as it's executed before the with(plots) command is executed. 

@acer thanks yes that's what I was looking for.

Is is possible to rename the changecoords outside the plots package to something else?

Building on Markiyan Hirnyk get the coordinates of the points.

f := x -> 0.12981e-1+0.80285e-1*cos(.9519256799*x)+0.41370e-1*cos(1.903851360*x)+0.35690e-1*cos(2.855777040*x)+0.147e-3*cos(3.807702720*x)

a := Student[Calculus1]:-CriticalPoints(f(x), x = -6 .. 6)

   [-5.080827670, -4.391753823, -3.300249925, -2.208746026, -1.519672179, 0., 1.519672179, 2.208746026, 3.300249925, 4.391753823, 5.080827670]

seq([i, evalf(f(i))], i = a)

   [-5.080827670, -0.3003674673e-1], [-4.391753823, -0.1222338857e-1], [-3.300249925, -0.61477e-1], [-2.208746026, -0.1222338856e-1], [-1.519672179, -0.3003674679e-1], [0., .170473], [1.519672179, -0.3003674679e-1], [2.208746026, -0.1222338856e-1], [3.300249925, -0.61477e-1], [4.391753823, -0.1222338857e-1], [5.080827670, -0.3003674673e-1]

@acer I did not know it worked on some machines, thanks for the info.  I think it only works for users of Windows XP who have service pack 3 installed - I have not upgraded (didn't want to risk the upgrade messing things up).  Can't recall the error message but I'm pretty sure it had something to do with a windows XP file missing or something. 

Here's a proc that converts to scientific form but it's more aesthetical than anything useful.  Thanks again for Preben Alsholm providing the initial procedure and pointing to some interesting programming. 

Scientific := proc (a, b::integer := 3) 
  if ilog10(a) = 0 then a else cat(convert(evalf(a*10^(-ilog10(a)), b), symbol), " x ")*10^(``*ilog10(a)) end if: 
end proc:

Scientific(3530)
                   3.53 x 103
Scientific(3530,6)
                   3.53000 x 103
Scientific(345678)
                   3.46 x 105

@Preben Alsholm thanks for that procedure. 

Can we create a proc named scientific to re-create the maplet like transformation so we don't need to use the context menu popup?

@Samir Khan Thanks, how many versions ago has that been available?

Can we create a procedure for it?  Or does the numeric formatting overide it making it not possible?

@Thomas Richard rotate won't rotate the word in conjuction with textplot.

Is there more to the question? 

sin(Pi/2) works just fine. Returns 1.

sin(Pi/4) also works just fine, it includes a square root.  Including a decimal point after the 4 will return a decimal answer.