BRAIN TEASERS
Brain Teasers User Profile

saber zafarpoor

rank
141
points
34
See full ranking list
short ranking list
139. Watermelon Cat 35
140. Tôn Thất Minh Nhật 35
141. saber zafarpoor 34
142. HOPE ABARANWOLU 34
143. Max S. 33
last 3 solved tasks
If 2+3=10, 8+4=96, 7+2=63, 6+5=66 then 9+5=?
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Frigyes Riesz

Born 22 Jan 1880; died 28 Feb 1956 at age 76.Hungarian mathematician and pioneer of functional analysis, which has found important applications to mathematical physics. His theorem, now called the Riesz-Fischer theorem, which he proved in 1907, is fundamental in the Fourier analysis of Hilbert space. It was the mathematical basis for proving that matrix mechanics and wave mechanics were equivalent. This is of fundamental importance in early quantum theory. His book Leçon's d'analyse fonctionnelle (written jointly with his student B Szökefalvi-Nagy) is one of the most readable accounts of functional analysis ever written. Beyond any mere abstraction for the sake of a structure theory, he was always turning back to the applications in some concrete and substantial situation.

New Yorkers and Light Bulbs

Q: How many New Yorkers does it take to screw in a light bulb?
A: One. What are you -- stupid?
Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.