Hi Megahertz,

The first question sounded pretty easy, with a 4 x 4 chart. Could do that using separate case statements, though not elegant. But you made it a lot tougher with .1 increments in the second question.

Darrel showed how to use 2d arrays here: http://www.picbasic.co.uk/forum/showthread.php?t=12870
But how are you going to populate all the data points? Do you have the formulas for the load charts of the cranes?