This category contains articles which include ASCII art, such as the diagram below (originally from Nondimensionalization): 

                          Displacement
                    <-ve x --- x=0 --- +ve x >
                               ||
                               \/
 Wall
/====|       Spring     /------\
/====|/\/\/\/\/\/\/\/\/\|      |
/====|   Dashpot        | Mass |<-----Force
/====|------[===========|      |
/====|                  \------/

While ASCII art pictures like this can be useful as sketches or temporary placeholders, they should in most cases be replaced with proper images. The exception to this rule, of course, are articles that are about ASCII art. Family trees drawn as ASCII art may be converted to use Template:Tree chart.

Allikas: https://en.wikipedia.org/wiki/Category:Wikipedia_articles_with_ASCII_art
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