The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Education » math-teach

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Integrating log(sinx)
Replies: 4   Last Post: May 17, 2001 9:09 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Richard Askey

Posts: 227
Registered: 12/3/04
Re: Integrating log(sinx)
Posted: May 17, 2001 9:09 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Dave Renfro suggested one nice way to evaluate the integral of
log(sinx) from 0 to pi/2. There is also a trick which works for
this integral. The integral from 0 to pi of log(sinx) is 2*
integral from 0 to pi/2 of log(sin2x). Use the double angle
formula symmetry of sin(x), and its connection with cosine
to get the integral of log(2) + 2*original integral from 0 to pi.
Dick Askey

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.