mjdominus/spark — comment on commit d5afa018106cf639f74dd19e4eb6897cbd0b46a2
File: spark line 87
By holman:

The bummer is that I'm sort of over shelling out to `bc` since it's slow and non-portable (there's an issue for Solaris, looks like). I'd rather just round and gain some speed rather than be slower and be a bit more accurate.