Using SageMathCloud I was surprised to find this bug: integral(sqrt(cos(x)-cos(x)^3), x, 0, pi/2) -2/3
The correct result is 2/3 (luckily I noticed that something was wrong because the result must be positive!) numerical_integral gets it right: numerical_integral(sqrt(cos(x)-cos(x)^3), 0, pi/2) (0.6666666687973078, 4.409680787972339e-07) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
