Order of Operations  In Terms of Efficiency


I'm not quite sure how efficient the different mathematical/comparative functions and operators are  I'd undoubtedly be taught this in a course for a degree in Computer Science, but I don't have such a course handy. (Still have to finish off my math upgrading before I can get automatically accepted into university  though I figure I might as well drop an application off for next year, and get myself a fulltime job (I can handle it) to pay for the tuition... wow, am I ever getting off the topic at hand.)
My basic experience goes (in order from most expensive to least expensive):
**
log()
/
*

=, &=
, &
!, ~
&&, 
max(), min()
==, , >
++
+=, =
+, 
=
If you see any errors, don't hesitate to correct them.
One question I have: since dividing is just multiplying a reciprocal, does that mean that using "num * 0.5" would be more efficient than "num / 2.0"? (Floating point math in both instances.)

Although there MUST be a website for the standards about thius. Did you try a google search? Also min/max are procedures... and I don't see an explicit procedure slot on that list (technically they are probably usually evaluated first)