/members-area/personalblogs/b/nexgen-flight-simuator/posts/flight-simulator-101-or-back-to-college---part-15-radio-propagation-and-slant-range-math-part-3---the-softwareOk, so after slogging through the math, and going to a local college to get my head straight, and to get some help, here finally I can see some light at the end of the road. So now I have to lay out the software, for you, and myself. So I drew a litten-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/nexgen-flight-simuator/posts/flight-simulator-101-or-back-to-college---part-15-radio-propagation-and-slant-range-math-part-3---the-softwareMon, 27 Apr 2026 09:27:10 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:23f43188-6e17-4273-b1fa-c01c04d231b9michaelkellett1<p>If you use a reasonably modern optimising C compiler the resulting code will often be the same if you use a #define for Sq or a function.</p> <p>(Because they inline short functions when optimising for speed.)</p> <p>Macros can be useful but can also make it very hard for other people to read your code - and the error messages the compiler makes when they are involved are sometimes not very helpful.</p> <p>MK</p><img src="https://community.element14.com/aggbug?PostID=25825&AppID=300&AppType=Weblog&ContentType=0" width="1" height="1">