7.72 bug in int if integrand is a derivative (13.12.01)

7.72.1 E. Elbraechter

In the following special case the integral of a derivative is wrong.

> restart; 
> interface(version,patchlevel); 
 
 
Maple Worksheet Interface, Maple 7.00, IBM INTEL LINUX, May 28 2   001Build ID 96223, 0 
 
> D[1](f)(xi,g(xi)); 
> Intat(%, xi=x): % = value(%); 
 
                          D[1](f)(xi, g(xi)) 
 
                  x 
                 / 
                | 
                |   D[1](f)(xi, g(xi)) dxi = f(x, g(x)) 
                | 
               /
 

In case of a multi variate function in 'int/D' it is not regarded, that more than one parameter could depend on the integration variable.

The same result with Maple 8. (U. Klein)