Looking for a book.
 

Quilters. We all know those special maths formulae for cutting out triangles etc but is there a book containing this information.. This is for a newbie who is a mathematician and can remember these rules and sees them very quickly. I know I have picked mine up as and when and even after 6 years still keep finding new ones. This person also a perfectionist, I'm not .

'The Quilter's Guide To Rotary Cutting' should work. You can pick up a second hand copy pretty cheap.