Logarithm of y to base x ... There'll never be a logxy key; besides, it is not needed. But just for fun let's try to write a tiny program for this, the tiniest the best.
On the 32Sii and the 33S only three steps will do the job. Anyone want to try?
(logyx can be done in only four steps: LN x<>y LN /, but this entry order doesn't look so natural. However logxy in four steps is still possible on most calculators).
Regards,
Gerson.