grid command causes fpe
both attempted uses of the grid command for the bernard loop paper ended in fpes. the common thread is R3244:3245
the following throws an fpe
test element nitrogen abundance -4.2 vary grid -4.5 -3.5 0.5
adding log to the command does not help. The grid command does what it is supposed to do - it emits -4.5, -4. and -3.5. The problem is the forced linear interpretation of these negative numbers at parse_elements.cpp:484 - added in 3245
the following throws an fpe test constant temperature 4 vary grid from 4e3K to 2e4K in 2e3K steps
the problem is r3244 - forced log interpretation at parse_constant.cpp:65, which is forced by the log on the vary option at line 100. that forced log is r4344
every grid command i tried for this paper threw an fpe.