not so FAQ

• Legend
• Tics
• Label
• 2-D Plot
• 3-D Plot
• Polar Coordinate
• Parametric Functions
• Data File
• After Plotting
• Miscellaneous Stuff
  • ternary operator
  • broken function
  • loop
  • least-squares fitting (I)
  • least-squares fitting (II)
  • dumb terminal
  • many kinds of lines
  • write a value

Miscellaneous Stuff (No.3)

What is the dumb terminal ?

gnuplot has a dumb terminal. It is seldom used, but I think it is funny.

gnuplot> set term dumb
Terminal type set to 'dumb'
Options are 'feed 79 24'
gnuplot> set yrange [0:1.5]
gnuplot> plot [-2:2] exp(-x*x)

     +--------+--------+--------+--------+-------+--------+--------+--------+
 1.4 ++       +        +        +        +       +        +exp(-x*x) ******++
     |                                                                      |
     |                                                                      |
 1.2 ++                                                                    ++
     |                                                                      |
     |                                                                      |
   1 ++                              ********                              ++
     |                            ***        ***                            |
 0.8 ++                         **              **                         ++
     |                         **                **                         |
     |                       **                    **                       |
 0.6 ++                    **                        **                    ++
     |                    **                          **                    |
     |                  **                              **                  |
 0.4 ++               ***                                ***               ++
     |              **                                      **              |
 0.2 ++           **                                          **           ++
     |        ****                                              ****        |
     +   ******        +        +        +       +        +        ******   +
   0 ****-----+--------+--------+--------+-------+--------+--------+-----****
    -2      -1.5      -1      -0.5       0      0.5       1       1.5       2

In short, plot a graph with letters. When you are working on a TTY terminal, and you want to see the data trend briefly, this terminal is helpful, sometimes. Or you can email this graph to your friend.