plotting geometric objects. Sci-lab [closed]

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By using Sci-lab I need to draw triangle cicrle and rectangular (separately, of course). the most difficult for me is triangle, I have no idea how to plot them

Answer 1

Plotting is rather trivial. See the plot command reference.

There are shorter ways, but for easiest understanding just plot the three sides as three lines.

For instance if you have a triangle with the corner coordinates at (x,y) = [0,0],[5,10],[10,0]. Plot three lines between these points.

plot([0,5],[0,10])
plot([5,10],[10,0])
plot([0,10],[0,0])