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.
Slip one stitch, knit two together, pass the slipped stitch over the end of the right hand needle. Knit to the end of the row.  # Knit the next row from start to finish with no decreases.  # Repeat these two rows until you have one stitch left and then snap the yarn and pull it through the stitch to cast off.