Re: a curious integral


Narcoleptic Insomniac wrote:
> [...]
> Maybe it's just me, but I cannot decypher what the original intgral
> even is. Like when you say
>
> Int[1/v/sqrt(v^2*a+b*v+c)]
>
> do you mean the root quantity to be
>
> v^2 * (a+b) * (v+c)
>
> or do you mean it to be
>
> av^2 + bv + c.
>
> Also, it's really hard to tell when you try to draw it out. Moreover,
> when you did try to draw it out the quantity under the root became a
> first degree polynomial, instead of a second degree that you
> originally had.
>
> Confused,

Your confusion is self-inflicted. (Thank youh Max Grundinski)

Do you have these questions when putting an expression into a graphing
calclator, or Maple, or Mathematica, or just about any computer
programming language?

Read up on "order of operations" or "preference".

--- Christopher Heckman

.

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