On Thursday, 19 November 2015 15:41:37 UTC, Matt Rissler wrote:
>
> integrate(x^(3-1)*(1-x)*(3-1),x,0,1)
>
> Why is this returning 1/6 and not 1/30?
>
> well you can check by hand that it is 1/6, for you are integrating a
polynomial
2*x^2-2*x^3
the antiderivative is 2*(x^3/3-x^4/4), and you get
Thanks for debugging my code. Should have been (1-x)^(3-1). I'm blaming
that on having a one-week old at home.
On Thursday, November 19, 2015 at 10:31:10 AM UTC-6, Dima Pasechnik wrote:
>
>
>
> On Thursday, 19 November 2015 15:41:37 UTC, Matt Rissler wrote:
>>
>>
On Saturday, April 14, 2012 6:04:44 PM UTC+2, Laurent Decreusefond wrote:
Dear all,
here is my problem
sage: var('t')
t
sage: integrate(e^(-2*t)/sqrt(1-e^(-2*t)),t,0,infinity)
-1
... a negative value for the integral of a positive function.
On the other hand
sage:
