∫[0,2,2-x^2,]

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- Dec 31st 2011, 05:09 AMmathkDefinate integrals (the first way- by definition)
∫[0,2,2-x^2,]

- Dec 31st 2011, 05:28 AMILikeSerenaRe: Definate integrals (the first way- by definition)
- Dec 31st 2011, 05:48 AMmathkRe: Definate integrals (the first way- by definition)
2-0/n= 2/n

x1 = 2/n

x2=4/n

xi-2i/n

\int_0^2f(2i/n)2/n

how do you draw or write limit and summation? - Dec 31st 2011, 05:58 AMILikeSerenaRe: Definate integrals (the first way- by definition)
Use [ tex ] ... [ /tex ] around your formulas to display them mathematically (without the spaces before and after "tex").

To get a summation, write [ tex ]\sum_{i=0}^{\infty} x_i[ /tex ], which shows up like:

$\displaystyle \sum_{i=0}^{\infty} x_i$

To get a limit, write [ tex ]\lim_{n \to \infty} x_i[ /tex ], which shows up like:

$\displaystyle \lim_{n \to \infty} x_i$

Click*Reply With Quote*to see what I did.