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MathGroup Archive 2004

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AW: Fundamental theorem problem

  • To: mathgroup at
  • Subject: [mg49581] AW: [mg49573] Fundamental theorem problem
  • From: Matthias.Bode at
  • Date: Sat, 24 Jul 2004 03:47:11 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Hello Steven,

    {t, 1, x^4}], x]]




Best regards,
Matthias Bode
Sal. Oppenheim jr. & Cie. KGaA
Untermainanlage 1
D-60329 Frankfurt am Main
Tel.: +49(0)69 71 34 53 80
Mobile: +49(0)172 6 74 95 77
Fax: +49(0)69 71 34 95 380
E-mail: matthias.bode at

-----Ursprüngliche Nachricht-----
Von: Steven Jonak [mailto:jonakst at] 
Gesendet: Freitag, 23. Juli 2004 12:02
An: mathgroup at
Betreff: [mg49573] Fundamental theorem problem

I input the command: D[Integrate[Sec[t],{t,1,x^4}],x] expecting to get
4x^3 Sec[x^4] but instead got a fairly complicated result that doesn't
resemble what one would expect from the Fundamental Theorem of Calculus.
 What am I doing wrong? Help!

S Jonak
"Maintain an even strain."

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