Can i formulate any curve with parametric equation ? if not, so what kind of curves can be explained with parametric equations ?! Thanks in advance
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1Please define parametric equation. – Michael Hoppe Nov 17 '13 at 17:06
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2What definition are you taking for "curve"? The usual understanding is a function from $\mathbb{R}$ into your space, so then the answer is trivially "yes". – Neal Nov 17 '13 at 17:07
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@MichaelHoppe Parametric equation – farzad Nov 17 '13 at 17:09
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1When you draw a curve with a pencil, you are already giving the coordinates over a parameter: time. – peterwhy Nov 17 '13 at 17:15
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@Neal plane curve indeed – farzad Nov 17 '13 at 17:15
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@farzad: Are you focusing on a certain plane curve? – Mikasa Nov 17 '13 at 17:17
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@B.S.: No,Parabola,Circle,Helix are some example of 2D or 3D curves that i have interest. – farzad Nov 17 '13 at 17:21
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@B.S. age soal tabdil beshe be "aya mishe har khati o ru safe 2d be ye taabe tabdil kard ?" ke khob javab malume "na" chon momkene monhani be ezaye yek X 2ta Y dashte bashe , vali aya baraye parametric ham intore ?intor nistesh chon circle taabe nis vali ba parametric namayesh esh mishe dad – farzad Nov 17 '13 at 17:36
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@farzad: Hamin khube. Haminu benewis. amma jawabe akharesho ke hadse khodete ziyad ru nakon. Alliye. Ishalla jawab migiri. :-) – Mikasa Nov 17 '13 at 17:39