The OS X calculator is one of my favorite applications and I use it every day for work (I find the binary display in the programmer view especially useful). So I was very surprised when I noticed that it was giving me the wrong answer for log(0.5). I was getting log(0.5) = 0.301 when it should be -0.301. Strangely 1-log(0.5) was correctly shown as 1.301. Well today I discovered that this only happens if you enable “Show Separators” in the View menu.
Does anyone else see this or is it just me?