manual:chapter2:cmdline

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The command line editor is an area of the screen that opens up whenever the user needs to input data on the calculator. The command line has several different modes of operation, indicated by the letter of the blinking cursor. Show an image of the screen

Modes of operation

The editor will switch between modes of operation automatically most of the time based on context. The user can manually switch by using the ENTRY key (RS+Alpha).

  • 'D' - Direct mode: When a number is first pressed, the editor opens up in direct mode. In this mode, commands and operations will close the editor, compile what was typed, and perform the operation all in a single keystroke. For example typing 2 and pressing 1/X will immediately produce an answer of 0.5.
  • 'A' - Algebraic mode: This mode is specifically for entering symbolic expressions. It is activated when the user types the single quotes '', or it can be entered into manually using ENTRY. In this mode, commands and operators will not perform their functions, but rather will insert themselves into the expression as text. For example pressing SIN in this mode will insert the text SIN().
  • 'P' - Programming mode: This is the default mode for programming in RPL, it is activated automatically when the user enters the program delimiters « ». In this mode, functions and operators will be inserted into the editor as commands, and automatically separated with spaces. For example pressing SIN in this mode will insert the text SIN separated with spaces as needed.
  • 'C' or 'L' - Alphanumeric mode: This is the preferred mode for entering arbitrary text. It is activated manually using ALPHA, or automatically when the user inserts the double quotes "". In this mode most keys will insert letters, numbers and symbols. The 'C' in the blinking cursor stands for Capitals, and will produce capital letters. On the other hand 'L' stands for Lowercase, and will insert lowercase letters. To switch between 'C' and 'L' modes, press the ALPHA key once. A second press of 'ALPHA' without pressing any other key in between will disable alphanumeric mode, and return to the previous mode. To temporarily alternate between 'C' and 'L', press and hold ALPHA, and the cursor will change from 'C' to 'L' or vice versa. This change is only temporary while holding ALPHA and pressing other keys. When releasing ALPHA the mode will revert back. Alphanumeric mode can also be used temporarily. When in any other mode, press and hold the ALPHA key and the cursor will change to 'C' or 'L'. Without releasing ALPHA you can type letters and symbols. Upon releasing ALPHA, the editor will return back to the previous mode of operation, ending alphanumeric mode.
  • manual/chapter2/cmdline.1493299333.txt.gz
  • Last modified: 2017/04/27 06:22
  • by claudio