Archive for the ‘History’ Category

Relational Algebra

Tuesday, August 19th, 2008

Christine: I am trying to learn relational algebra. Take the following equation; σ F ( r ) = { t ? t ?? r ? F ( t ) } σ What does “?” represent in this equation? What does “?” represent? What do the braces { } represent? ...

Test Post

Tuesday, August 19th, 2008

Alan Thwaites: “Anything worth doing is worth delaying” - calculus. Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

Gerardus 't Hooft doubt about power of calculus..

Tuesday, August 19th, 2008

unknown: Gerardus ‘t Hooft in his Nobel Lecture “A Confrontation with Infinity” did some important comment about applicability of differential equations: “The mathematics of differential equations grew out of this … Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

Manifesto of meritocratic eliticism: comments

Tuesday, August 19th, 2008

Denise: My physics lecturer at the School, Evgenii Bichenkov, republished a short article, Physics and Mathematics School in a third of century (Физико-математической ?коле - треть века), written 10 years ago. My old friend owl translated it … Read more

Elements of Administration (Paper 2) & Mathematics Paper 2

Tuesday, August 19th, 2008

sheila@sheilawraygregoire.com: the paper half way stop then lag lo. hang 5min this repeat for all question very irritating. luckily teachers give extra time. if not huat zai! then math exam okie la quite easy. never check cause tired. then go home online + sleep. … Read more

Study Shows Human Brains Can Do Math Without Numbers

Tuesday, August 19th, 2008

admin: At the conclusion of the study, following tests which had the children tested for math skills, they found no difference between the ability to do math between the kids who did not speak any number words in their languages, … Share and Enjoy: These icons link to social bookmarking sites where ...

Problem 152441 solved by munisa

Tuesday, August 19th, 2008

unknown: This problem was solved by munisa: what two-digit number is twice the product of its digits? Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

Problem 152389 solved by orca

Tuesday, August 19th, 2008

webmaster@algebra.com: This problem was solved by orca: Simplify: No negative exponents and no decimal answers. (27a^3b^2c^5/45a^4c^2)^3. Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

Problem 152402 solved by orca

Tuesday, August 19th, 2008

webmaster@algebra.com: This problem was solved by orca: find the logarithm: log base 36 of 6. Share and Enjoy: These icons link to social bookmarking sites where readers can share and discover new web pages. Read more

Problem 152423 solved by orca

Tuesday, August 19th, 2008

webmaster@algebra.com: This problem was solved by orca: Please help with this problem The complex numbers 2/5xi + 3 and -4 - 1/4yi are equal. Find the values of x and y Have tried solving as a regular equation but cannot find equal values. Share and Enjoy: These icons link to social bookmarking ...