diff(integrate(cos(k*x)*cos(n*x),x));

• Subject: diff(integrate(cos(k*x)*cos(n*x),x));
• From: Khiraly Kalman
• Date: Mon, 13 Jan 2003 19:00:44 +0100

Hi!
diff(integrate(cos(k*x)*cos(n*x),x));

Why doesn't done the same resultat?:
Theoretically diff(integrate(f(x)))=f(x)

But maxima doesn't.

 diff(integrate(cos(k*x)*cos(n*x),x))=cos(k*x)*cos(n*x)

Thanks   

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