- #1

- 635

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Integrat Ln[x]dx!!!!

- Thread starter PrudensOptimus
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- #1

- 635

- 0

Integrat Ln[x]dx!!!!

- #2

- 334

- 1

Consider it as 1*ln(x) and use parts.

- #3

- 45

- 0

The Integrator

It gives the answer:

[tex]

-x + x \ln x

[/tex]

- #4

- 650

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Is [x] greatest integer function??

- #5

- 334

- 1

Hmm, didn't consider that. I'm not sure there'd be a closed form expression for [itex]\int ln[x] dx [/itex]

where [itex][x][/itex] is the next greatest integer function. It'd be easy enough to get a numerical answer if the interval was specified though.

where [itex][x][/itex] is the next greatest integer function. It'd be easy enough to get a numerical answer if the interval was specified though.

Last edited:

- #6

- 22

- 0

I think this is what Lonewolf is proposing (please excuse my ignorance!)

Regards,

Sam

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