Casio Fx9750-GII - Log base a,b

Log base a,b
Finding this function on the calculator takes several keystrokes. The following keystrokes
will enable you to do other log bases other than 10.
The following figure is what you get after pushing the buttons.
You have done a log base 5 calculation. You are able to modify what is in the parentheses
and after comma. You are also able to add any combination of equations after the
parentheses.