Roel Schroeven rschroev_nospam_ml at fastmail.fm:
>> (%i92) integrate(diff(z(x+t), x), x, 0, 1);
>>
>> (%i93) integrate(diff(z(x+t), x), t, 0, 1);
>>
>> should both return the same (viz., the former) result?
>
>Are you sure they are the same? I can see that
>
>integrate(diff(z(x+t), t), t, 0, 1);
>
>is the same is %i92, but I don't think %i93 is the same too.
Sorry for the confusion, you (and Maxima) are exactly right (and
the original problem was caused by a gradef(), by the way).
Best regards,
Albert.