They are not predefined. If they existed, I should think they would be called Dber and Dbei, similar to the derivatives of the Airy functions DAi and DBi.
But that should not impede you to use them:
Or, in Prime:
Success!
Luc
LucMeekes wrote:
Prime knows even how to express them symbolically:
Opps! Is that new in Prime 4 ?
Here in Prime 3:
EDIT: Not my day!
Had overlooked your first post and had not noticed that you also defined the derivative yourself in the second one.
I guess it is. 15 days left to play... (and be terribly annoyed by the slow UI).
Mathcad 11 symbolically gives:
Not more than what you have there in Prime 3.
Luc
Guess you misunderstood my post.
At first glance over your post I had the impression, your version of prime would know about Dber and Dbei out of the box. It was only after pressing "Add reply" that I noticed you defined them manually, too.
In Mathcad 15 the symbolics does not know anything about bei and ber, but also in Prime 3 the symbolics knows about "bei" and "ber" and gives us the appropriate result for the derivatives:
Prime does not provide those derivatives of those Bessel functions out of the box, but you can define them yourself:
You may even use the prime symbol ' in the name by first writing the name as text between quotes "...." and then deleting the quotation marks.
