On Oct 22 1993 (20:17), Aaron West of 3:620/264 wrote:

 AW> I've ressurected my code for a talk and presentation that I 
 AW> have been assigned to do at school, and I tidied up my code 
 AW> and did a quick recompile under BC++ v3.1. Same problem. 
 AW> Performance is abysmal.

 AW> Turbo Profiler reports that most of the programs time is 
 AW> spent executing the following instruction:

 AW> rreal = pow(temp, 2) - pow(image, 2) + ymin;

There are a number of people in this echo who can probably give a better
answer than I.  Nonetheless if "pow(?,2)" is just squaring the
1st term (I don't have my manuals handy..), have you tried rewriting as

rreal = temp*temp - image*image + ymin;

?

Regards, Andrew.

--- Msgedsq 2.2e