Usually d'Alembert's ratio test is easier to perform than Cauchy's root test but it is less powerful (-> book Advanced mathematics for applications, Andrea Prosperetti, Cambridge University press).
On Amazon:
http://www.amazon.com/Advanced-Mathematics-Applications-Andrea-Prosperetti/dp/0521735874
On Google Books:
http://books.google.com/books?id=yQejXXN8zdoC
Showing posts with label maths. Show all posts
Showing posts with label maths. Show all posts
Sunday, November 6, 2011
Saturday, August 13, 2011
[Fun] Maths Jokes !
* Why do the mathematicians name their dog "Cauchy" ?
Because he leaves a residue at every pole.
* You know what's odd to me ?
Numbers that are not divisible by two.
* A pair of discrete mathematicians are in a field. One asks: "I wonder how many sheeps there are in this field ?"
The second replies: "There are 200."
Astonished, the first asks: "How do you manage to count that fast ?"
"That's simple, I counted the legs and divided by four."
source (in french): Blagues mathématiques et autres curiosités, Bruno Winkler, Editions ellipse.
Because he leaves a residue at every pole.
* You know what's odd to me ?
Numbers that are not divisible by two.
* A pair of discrete mathematicians are in a field. One asks: "I wonder how many sheeps there are in this field ?"
The second replies: "There are 200."
Astonished, the first asks: "How do you manage to count that fast ?"
"That's simple, I counted the legs and divided by four."
source (in french): Blagues mathématiques et autres curiosités, Bruno Winkler, Editions ellipse.
Subscribe to:
Posts (Atom)