@Carl Love Error, tables cannot be mixed with other container objects in an elementwise operation
 

@Carl Love works great, how do I test is the inteval is open or closed on each end?

@Carl Love If you use discont, then you should add a line for the asymptote. I'm thinking dotted, and light blue.

@mmcdara Thanks!

@Carl Love people keep givning me code that works, but I'm not getting the general formula.  I'll figure it out in the morning.

@Preben Alsholm I'm getting -abs(x) and when I try

solve((limit)<1)

i get x.

@Preben Alsholm thanks, looks real good.  I'm going to also need something similar with taylor functions.

@Preben Alsholm How do I then do a ratio test on this?

@Kitonum I'm trying to find the interval of convergence, knowing the series.

@Carl Love I don't think I'm explaining this right

```

f:= (2/(3-x))

s:=convert(f,FormalPowerSeries)

```

outputs

s := Sum(2*3^(-k - 1)*x^k, k = 0 .. infinity)

I want a command or function that gives

2*3^(-k - 1)*x^k

or

2*3^(-k - 1)

@Kitonum how do I get u then, so that I can find the interval?

@Kitonum thanks that was a big help! is there also a way to find c(n) given S  ?

@nm My bad, I misundestood what etc meant.  Works now. Thanks!

@nm I didn't get it to work, I thought I did the right folder.

```

C:\Program Files\Maple 2020\bin.X86_64_WINDOWS

```

Is this correct?  To I need to select a bin file?

@acer Got it. I just like the way it looked, so putting one at the end is probably a good idea.  If I set the x[0] values to

1.5,-1.5, will it find both roots?