Once again, I fell into the trap of saying "you should often do x" while leaving off the "... Except when you shouldn't". The exact comment from the CS professo

Once again, I fell into the trap of saying "you should often do x" while leaving off the "... Except when you shouldn't". The exact comment from the CS professor I have in mind was "Using doubles when doing realtime human facing calculations (such as a calculator) is the best way to go. However, floats have their uses, such as on systems where there isn't enough memory, or where a float fulfills the requirements." but that's a bit much to type from a phone so I went for "use doubles". And now I'll never be so lazy with my comments again!