Hello, ive tried everything i know how to do and i cant do this(!):

$\displaystyle \int{e^{x^2}}dx$

Its not very clear but thats e to the power of x squared.

Thanks!

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- Apr 27th 2010, 04:15 AMdarksupernovaintegrating e
Hello, ive tried everything i know how to do and i cant do this(!):

$\displaystyle \int{e^{x^2}}dx$

Its not very clear but thats e to the power of x squared.

Thanks! - Apr 27th 2010, 04:17 AMmr fantastic
It cannot be done using a finite number of elementary functions (this can be proved, by the way). An answer can be found using the Error Function erf(x): Error function - Wikipedia, the free encyclopedia

- Apr 27th 2010, 07:56 AMguess
yup.. this is a very interesting question.. it cannot be solved directly due the the reason provided above.. however, the ans can be approximate by converting e^(x^2) to some polynomial using lagrange interpolation or using taylor series. It should be able to get some very close approximation

- Apr 27th 2010, 11:03 PMdarksupernova
wow thanks very much guys! wondered why i was struggeling so much!

Thanks ;)