On Tuesday, July 22, 2014 2:04:01 AM UTC-7, Craig E Larson wrote:
>
> I am getting an error that I don't understand for the following definite
> integral.
>
> sage: integral(sqrt(1+(9*cos(3*x)^2)),0,pi/2)
>
> This is definitely real on its domain and under the square-root is always
> positive. Ne
> This behavior was on Cloud Sage:
'Sage Version 6.2.rc2, Release Date: 2014-05-04'
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On 2014-07-22, Craig E Larson wrote:
> I am getting an error that I don't understand for the following definite
> integral.
>
> sage: integral(sqrt(1+(9*cos(3*x)^2)),0,pi/2)
>
> This is definitely real on its domain and under the square-root is always
> positive. Nevertheless, I get the error:
>
