A tremor, or shaking, usually begins in a limb, often your hand or fingers. You may notice a back-and-forth rubbing of your thumb and forefinger, known as a pill-rolling tremor. One characteristic of Parkinson's disease is a tremor of your hand when it is relaxed (at rest). Slowed movement (bradykinesia).
The vertical bar is often called a ' pipe '. It is often used in mathematics, logic and statistics. It typically is read as 'given that'. In probability and statistics it often indicates conditional probability, but can also indicate a conditional distribution. You can read it as 'conditional on'.
Answers.comÂ® is making the world better one answer at a time. Vertical means up and down. A horizontal line goes from the left to the right (or from the right to the left) like this: -----------------------------. A horizontal line goes from a position that is low to a position that is high (or from a position that is high to a position that is low) like this: |.