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Question: animation problem

Question:animation problem

James Angelos 0 Maple
January 07 2011
0

I entered

animate(plot,[s*cos(Pi/2*(1-t)),s*sin(Pi/2*(1-t)),s=0..1],t=0..1);

and received the error

Error, (in plots/animate) unexpected options: [s*sin(.5000000000*Pi), s = 0 .. 1]

This is to draw a radial line beginning at 12 o'clock and ending at 3 o'clock.

I could get it to work as

animate(plot,[tan(Pi/2*(1-t))*x,x=0..1,view=[0..1,0..1]],t=0..1);

though.  But the length of the line is not fixed as I require.
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