7.6 Toolbar (Alg\en\Gap) 

Figure 7.5 The toolbar Alg\en\Gap (computer algebra in group theory).

7.6.1 Description of the buttons (mod. 22/04/2003) 

1.   GAP  : launches the GAP program in a command window.
2.   EMACS/ast  : launches the Emacs program for Windows from the directory ASTEXDIR (necessary to use the button Egap ).
3.   Egap  : launches Gap in a shell of Emacs. Emacs must be already open. The command sent to the shell is runprg.bat gap.
4.   << Doc>>  : marker of the group of buttons << Documentation>>. This button doesn't execute any action, it serves just as visual separator between the groups of buttons.
5.   Web site  : displays the site of Gap in the default web browser.
6.   Loc web  : displays a local copy of the site of Gap in the default web browser.
7.   Tutorial  : displays the tutorial of Gap.
8.   Manuals  : displays the basic manuals of Gap (?not the specialized package manuals - to be checked?).
9.   << Tests com>>  : marker of the group of buttons << Tests communs>> (common tests). This button doesn't execute any action, it serves just as visual separator between the groups of buttons.
10.   1+2  : add 1 and 2 in Gap.
11.   2*3  : multiply 2 by 3 in Gap.
12.   2^10  : calculate 2 to the power 10 in Gap.
13.   1/3+3/4  : add two fractions in Gap.
14.   100 !  : calculate the factorial of 100 in Gap.
15.   Quit  : quit the Gap program.
16.   << Tests spec>>  : marker of the group of buttons << Tests specific to the program>>. This button doesn't execute any action, it serves just as visual separator between the groups of buttons.
17.   << Tests btns>>  : marker of the group of buttons << Buttons under test>>. This button doesn't execute any action, it serves just as visual separator between the groups of buttons.
18.   Ini tests ?  : Inserts the necessary command to load the tests of Gap, with the characters " replaced by apostrophes. To obtain the correct command, replace all apostrophes by ".
19.   Run tests ?  : launches the tests of Gap, once the correction above has been done.
20.   GAP ?  : launches Gap without going through startprg.bat.

7.6.2 Test of the buttons 

• Under Windows 2000, the buttons of the 6 common tests work in a command window and in a shell of Emacs.
• Under Windows 2000 the end of commands {ENTER}^c^c (useful in a shell of Emacs) gives an error in a command window:

  user interrupt while printing not in any function  Entering break read-eval-print loop ...  you can 'quit;' to quit to outer loop, or  you can 'return;' to continue

7.6.3 Starter guide 

One can test the modules of Gap by typing the command:

Read ("X:/ast/alg/gap/tst/testall.g")

and by replacing X with the name of the CD-ROM drive in which the Rosetta CD-ROM is.