i plotted a parabola....when i try to join the previous pixel with the next pixel,it does not come out to be straight???cant we draw a smooth curve....joing pixels???if no then why???
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Well until you post code, and tell us which OS/Compiler/Graphics library you're using (not that I'm expecting it to be anything other than fossil TurboC and BGI), don't expect an answer.
The way to make the curve appear smoother is to reduce the interval between sample points.
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