Info Catalog calc: Using Calc calc: Using Calc calc: The Standard Interface

calc: Starting Calc

 
 1.5.1 Starting Calc
 -------------------
 
 On most systems, you can type ‘C-x *’ to start the Calculator.  The key
 sequence ‘C-x *’ is bound to the command ‘calc-dispatch’, which can be
 rebound if convenient (Customizing Calc).
 
    When you press ‘C-x *’, Emacs waits for you to press a second key to
 complete the command.  In this case, you will follow ‘C-x *’ with a
 letter (upper- or lower-case, it doesn’t matter for ‘C-x *’) that says
 which Calc interface you want to use.
 
    To get Calc’s standard interface, type ‘C-x * c’.  To get Keypad
 mode, type ‘C-x * k’.  Type ‘C-x * ?’ to get a brief list of the
 available options, and type a second ‘?’ to get a complete list.
 
    To ease typing, ‘C-x * *’ also works to start Calc.  It starts the
 same interface (either ‘C-x * c’ or ‘C-x * k’) that you last used,
 selecting the ‘C-x * c’ interface by default.
 
    If ‘C-x *’ doesn’t work for you, you can always type explicit
 commands like ‘M-x calc’ (for the standard user interface) or
 ‘M-x calc-keypad’ (for Keypad mode).  First type ‘M-x’ (that’s Meta with
 the letter ‘x’), then, at the prompt, type the full command (like
 ‘calc-keypad’) and press Return.
 
    The same commands (like ‘C-x * c’ or ‘C-x * *’) that start the
 Calculator also turn it off if it is already on.
 

Info Catalog calc: Using Calc calc: Using Calc calc: The Standard Interface