Brief explanation

Markiyan Hirnyk — Fri, 20 Apr 2012 21:37:34 Z

The three cites from Maple 13 Help:
"A name may also be formed by enclosing any sequence of characters in a pair of left single quotes (` `).
For example: `This is a name!` := 1.
Any valid Maple name formed without using left single quotes is precisely the same as the name formed
by surrounding the name with left single quotes. Therefore, x and `x` both refer to the same name x.
However, a keyword may not be used as a name unless it is enclosed in left single quotes.
In some previous releases of Maple, names formed by using left single quotes were used as character strings
instead of names. A common example was the string used as an error message, for example, ERROR(`the argument
must be an integer`). This use of names has been made obsolete by the addition of the string type in Maple.
Two successive left single quotes that appear after the opening of a name are parsed as a single left single
quote. Thus, `abc``de` yields abc`de. Alternatively, a left single quote can be written within a name
by preceding it with a backslash (\ ), for example, `abc\`de` "

"Enclosing an expression with right single quotes ' ' will delay the evaluation of the expression.
As another example, help(Digits); returns a message stating that the argument to the help function was not a name --- because Digits evaluates to an integer value. To get the desired help description, use instead the quoted form: help('Digits');.
Enclosing an expression in unevaluation quotes produces a new expression of type uneval. It evaluates to the original expression.
After each evaluation, one level of single quotes is stripped off.
Note that evaluation is different from simplification"
Examples:
1. >x:=2:
   >y:=3:
    >f:='x+y'
         x + y
2.>a:=1;
                                    1
> ''a'';
                                     'a'
>'a';
                                      a
> a;
                                      1

"A string is written by enclosing any sequence of characters within a pair of double quote characters (" ").
For example: "This is a string".
Strings may also be formed with the concatenation operator `` || '',
or with the function cat. See the help page for ?cat for more information"

Thanks a lot

smith_alpha — Sat, 09 Jun 2012 13:37:51 Z

Thanks a lot

MaplePrimes - answers and comments on Question, What is the difference between "" '' ``

Brief explanation

Thanks a lot