Definition of applied. 1 : put to practical use applied art; especially : applying general principles to solve definite problems applied sciences.
How to Purl. The purl stitch differs from the knit stitch in two fundamental ways: The working yarn is held in the front of the project instead of the back, and the needle is inserted from the back to the front instead of from front to back. Hold the needle with cast-on stitches in your left hand. Wrap the working yarn (ball end) around your left index finger, and hold it in front of the work. 1. Insert point of right-hand needle, from back to front, into the first cast-on stitch on the left-hand needle, opening up a stitch.
2*2 Rib: A 2*2 rib stitch is also used for edges of a garment and it is little stretchy than 1*1 rib knitting. As the name refers knit 2, purl 2 and continue the process for each row. As it are multiple of four you will have to knit the first two stitches on one side and purl the first two stitches on the other side.