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) .
To calculate how much fabric you need for borders, backing and binding for a quilt, begin by entering the width and length of the quilt top. Be sure to take your measurements accross the center of the quilt top. If measurements at the edges differ from those at the center, ease the borders while sewing. This helps to square up the quilt top and keep the borders from being wavy. Select a border style and enter your planned border widths and fabric widths. For borders not included in your quilt top, set the width to 0. Then click the Calculate button.