I was looking at another question at difference forum. I noticed integrate
hangs when
using %i for sqrt(-1) but returns right away when type sqrt(-1). But
returns with an error message.
But these two should be the same.
===========================
(14) -> %i*%i
(14) - 1
Type:
Complex(Integer)
(15) -> sqrt(-1)*sqrt(-1)
(15) - 1
=========================
So why this gives error
==========================
(16) -> setSimplifyDenomsFlag(true)
integrate(x/( (x^2 - 1/5 - 2*sqrt(-1)/5)*sqrt(x^3 - x)),x)
There are 9 exposed and 6 unexposed library operations named -
having 2 argument(s) but none was determined to be applicable.
Use HyperDoc Browse, or issue
)display op -
to learn more about the available operations. Perhaps
package-calling the operation or using coercions on the arguments
will allow you to apply the operation.
Cannot find a definition or applicable library operation named -
with argument type(s)
Polynomial(Fraction(Integer))
AlgebraicNumber
Perhaps you should use "@" to indicate the required return type,
or "$" to specify which version of the function you need.
======================
But this does not give error (but seems to hang, or take long time for me
to wait)
integrate(x/( (x^2 - 1/5 - 2*%i/5)*sqrt(x^3 - x)),x)
I just changed sqrt(-1) by %i and nothing else.
--Nasser
--
You received this message because you are subscribed to the Google Groups
"FriCAS - computer algebra system" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/fricas-devel/f6d9d25d-00aa-4069-8192-33e2f443ea6cn%40googlegroups.com.
