Straight <a href="https://en.wikipedia.org/wiki/line_(mathematics)" class="extiw" title="en:line (mathematics)">line</a> represents <b><a href="https://en.wikipedia.org/wiki/1D" class="extiw" title="en:1D">first dimension</a></b> (1D).
<a href="https://sl.wikipedia.org/wiki/Uporabnik:Dbc334" class="extiw" title="sl:Uporabnik:Dbc334">Dbc334</a>
2007-04-04
<span class="int-own-work" lang="en">Own work</span>