See the mice (surface bats) problem here
The Bats problem - see please the video and the Mathcad 15 sheet in attach!
Can you show more nice (symmetric) plan of flyers!
See please the correct solution here
https://community.ptc.com/t5/PTC-Mathcad/Is-it-my-own-or-Mathcad-15-error/td-p/576164/page/2
One real bats problem
![aid187600-v4-728px-Get-Rid-of-Bats-Step-1-Version-2[1].jpg](https://community.ptc.com/t5/image/serverpage/image-id/11182i7E0A43F6013C3A0D/image-size/large?v=v2&px=999 "aid187600-v4-728px-Get-Rid-of-Bats-Step-1-Version-2[1].jpg")
