This is a slightly more interesting problem featuring calculators.

What is the minimum number of mathematical operations needed (buttons pressed), if we want to get all the numbers from 0 to 10? Use a scientific calculator and anytime you cannot press any digit button. I mean we can only use buttons on the top (like log, triginometric, etc).

Definitely it will start from Zero as most scientific calculators do that already.

A simple example being just take log inverse twice. The 1st one will give 1 and the 2nd will give 10.

Also it would be further interesting to find the desired count if we add the restriction that one should not arrive to the same number more than once.

TRY!!!!!!!!!