Not to long ago i found a post showing that maple was able to show the steps behind math.

example:

twostep:=proc(expr::uneval)
   (convert(expr,name) =
    subsindets(expr,And(name,satisfies(t->type(eval(t),constant))),
               z->convert(eval(z),name)))
   = eval(expr):
end proc:

a:=1:
b:=3:
c:=5:

h:=twostep(a+b*c);

                     (a+b*c = 1 + 3*5) = 16

However if I assign a unit to any of these numbers (a,b or c), the twostep code won't work.

Is there any way that maple can show the steps, while having it both show and convert the units?

example:

a:=70V:

b:=40Ohm:   (I can't insert the Omega sign)

c:= twostep(a/b);

                (a/b=70V/40Ohm) = 1,75A