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7.3 Toolbar ../../../icones/rosetta/calc.gif (Alg\en\Calc) 

 
../../../images/rosetta/en/pcalc.gif
Figure 7.2 The toolbar Alg\en\Calc (infinite precision calculator for Emacs).
Emacs contains an on-line scientific minicalculator calculator.el, very simple to use but with limited possibilities, and a more powerful calculation program calc.el, that permits to do some calculations that are a matter for computer algebra.

We describe in this section how to launch these programs from the buttons of the toolbar Alg\en\Calc, and we give some advice to start using them.

7.3.1 Description of the buttons 

  1.   EMACS  : launches the Emacs program for Windows.
  2.   CALCulator  : launches the Calculator program for Emacs (file ROSETTA\ast\edit\lisp\calculator.el). Emacs must be already open.
  3.   CALC  : launches the Calc program for Emacs (file ROSETTA\ast\edit\- lisp\calc\calc.el). Emacs must be already open.
  4.   CALC-Kpd  : launches the Calc program for Emacs in minicalculator mode (file ROSETTA\ast\edit\lisp\calc\calc-keypad.el). Emacs must be already open.
  5.   << 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.
  6.   Web site  : displays the site of Calc in the default web browser.
  7.   Loc web  : displays a local copy of the site of Calc in the default web browser.
  8.   Tutorial  : displays the pages of tutorial of the manual of Calc.
  9.   Manual  : displays the manual of Calc.
  10.   << Btns Emacs>>  : marker of the group of buttons << Boutons pour Emacs>> (Buttons for Emacs). This button doesn't execute any action, it serves just as visual separator between the groups of buttons.
  11.   Escape  : runs the command Cancel of Emacs (Ctrl-G).
  12.   Del window  : suppress the current window of Emacs (Ctrl-X 0).
  13.   Exit  : quit Emacs (Ctrl-X Ctrl-C).

7.3.2 Starter guide of Calculator (mod. 22/04/2003) 

The scientific minicalculator Calculator is launched in the same way, whatever the version of Windows.

  1.  Select the group of toolbars Alg-1 of assistant Rosetta.
  2.  Open the toolbar Alg\en\Calc by clicking on the button ../../../icones/rosetta/calc.gif  of the assistant's strip.
  3.  Launch Emacs by clicking on the button EMACS .
  4.  Launch Calculator by clicking on the button CALCulator .
  5.  Display the main commands of Calculator by typing ?

7.3.3 Starter guide of Calc (mod. 21/04/2003) 

Calc can be run in the same way, whatever the version of Windows.

  1.  Select the group of toolbars Alg-1 of assistant Rosetta.
  2.  Open the toolbar Alg\en\Calc by clicking on the button ../../../icones/rosetta/calc.gif  of the assistant's strip.
  3.  Launch Emacs by clicking on the button EMACS .
  4.  Launch Calc by clicking on the button CALC .
  5.  Display the User's Guide of Calc with the help of the button Manual .
  6.  Click on the button Tutorial to display the tutorial of Calc (section 3. Tutorial of the User's Guide) and to start learning some possibilities of Calc.

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