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when is y=x+a not a straight line?
Posted:
Dec 8, 2012 1:28 AM


Try this
a=0``0.5 ListPlot[Table[{x, a + x}, {x, 10, 10}], Joined > {True}]
This is probably not a surprise to some people.
If you think the value for "a" could never happen, try this:
a=N[1,20] Do[a=2*aa,{43}]
Compare to Plot[x+a,{x,1,10}] which shows that Plot evaluates its first argument in an manner inconsistent with Table's method.
Cheers. RJF



