Polynomial equations have the form P (X) = 0, where P is a polynomial. Linear equations have the form a (x) + b = 0, where a is a linear function and b is a vector. To solve them, one uses algorithmic or geometric techniques, coming from linear algebra or mathematical analysis. Changing the domain of a function can change the problem considerably.
When piecing the backing of a quilt, avoid using a center seam. When a quilt is folded in half, the extra bulk of the center seam along the fold line stresses the quilt, causing the quilt top and batting to break down. Instead, cut one of the lengths of backing fabric into two long, narrow pieces. Stitch a narrow piece to each side of the full-width piece. The quilt should be loaded into the quilting frame with the seams running the same direction as the rail does (also called the belly bar) .
Because my seam is 1/8 wider, I have a very nice full binding when I turn the binding to the back of the quilt to stitch down. Stop sewing 1/4 from the first corner; backstitch. Remove the needle from the quilt and cut the threads. Fold the binding up, then back down even with edge of the quilt. Begin stitching at the edge of next side, backstitch to secure and continue sewing. Repeat at all corners. Stop sewing about 6 to 8 from where the binding strip started on the first side.