New Version: 2016.08.29 r10637

[compsystems]

1: trivial errors, still not been solved =(

error with parser QUOTES fails on fractions, The operador '[]' are used for CAS entries, not be evaluated.

Case 1: using the operator '[]'

[SHIFT]+[()] + a/b [ENTER] -> ERROR ( 'a/b)'

or with help brackets

[SHIFT]+[()] + (a/b) [ENTER] -> ' (a/b) ' apparently okay on history view
but
[up][up][copy] [ENTER] -> ERROR ( 'a/b)'

Case 1: using the quote cmd

quote(a/b) [ENTER] -> '(a/b)' apparently okay
but
[up][up][copy] [ENTER] -> ERROR ( 'a/b)'

ENTRY FLAG: ALGEBRAIC ON, TEXT BOOK OFF
quote(a/b) [enter] '(a/b)' [up] [up] [COPY] [ENTER] '(a/b)' ok

also ONLY WORKS with capitals

QUOTE(a/b) [ENTER] -> '(a/b)' ok
[up][up][copy] [ENTER] -> '(a/b)' ok


Example 2:
ENTRY FLAG: ALGEBRAIC ON, , TEXT BOOK OFF

getOperator:=0; [enter]
part(quote(x^3/x^2),getOperator); returns "/" OK
goto history [^][^]
[copy] [enter] -> ERROR SINTAX =(


THE SOLUTION, ON CAS MODE Pressing '' key encoded as QUOTE()

2: pretty mathematical print still unfinished=(

ENTRY: ALGEBRAIC OFF, TEXTBOOK ON
[a,b,c] [1] (get element #1)-> at([a,b,c],0) NO PRETTY MATHbook PRINT, In any math book I see this notation
the next screen shot is how you should show a true math print history view