Monday, September 20, 2010

what i learned last week

what i learned last week was how to solve the nth root with irrational numbers and how to solve for absolute error (ex)
One commonly distinguishes between the relative error and the absolute error. The absolute error is the magnitude of the difference between the exact value and the approximation. The relative error is the absolute error divided by the magnitude of the exact value. The percent error is the relative error expressed in terms of per 100.
As an example, if the exact value is 50 and the approximation is 49.9, then the absolute error is 0.1 and the relative error is 0.1/50 = 0.002. The relative error is often used to compare approximations of numbers of widely differing size; for example, approximating the number 1,000 with an absolute error of 3 is, in most applications, much worse than approximating the number 1,000,000 with an absolute error of 3; in the first case the relative error is .003 and in the second it is only .000003

Monday, September 13, 2010


what i learned last week about geomentry was about was irattional numbers and how they work with roots and how to solve them it wasnt easy at first but when you actually paid attention it was easy

Tuesday, September 7, 2010

what i learned last week"august 30th through september 3rd"

I learned how to create a blog using google blogger. I learned how to factorial numbers and learn about combinations and permutations and whats different between them. Comboinations - the order of things doesnt matter and permutations are- the order of things does matter.