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MathGroup Archive 2000

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Simple integral wrong

  • To: mathgroup at smc.vnet.net
  • Subject: [mg25021] Simple integral wrong
  • From: Paul Cally <cally at kronos.maths.monash.edu.au>
  • Date: Fri, 1 Sep 2000 21:57:29 -0400 (EDT)
  • Organization: Monash University
  • Sender: owner-wri-mathgroup at wolfram.com

Try integrating | cos u| from u=0 to u = Pi x. Despite the integrand
being everywhere
non-negative, Mathematica 4 gives a result which jumps DOWNWARDS by 2 at

x=1/2, 3/2, 5/2, .... I thought these simple integration errors had been
sorted out by
Wolfram years ago!

Paul Cally

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