In math mode a tilde diacritic can be written as, e.g., \tilde{x}. For a wider tilde \widetilde can be used. The \sim command produce a tilde-like binary relation symbol that is often used in mathematical expressions, and the double-tilde â is obtained with \approx. The url package also supports entering tildes directly, e.g., \url{http://server/~name}.
Cerebral palsy (CP) is a broad term used to describe a group of chronic palsies -- disorders that impair control of movement due to damage to the developing brain.CP usually develops by age 2 or 3 and is a nonprogressive brain disorder, meaning the brain damage does not continue to worsen throughout life.erebral palsy (CP) is a broad term used to describe a group of chronic palsies -- disorders that impair control of movement due to damage to the developing brain.
Cerebral palsy is a general term describing conditions that cause movement problems. The most common type is spastic cerebral palsy where the muscles are stiff and rigid in one or more limbs. The underlying problem is damage to, or faulty development of, part of the brain.This usually occurs sometime before birth.or example, severe prolonged lack of oxygen during birth may be a cause in a small number of cases. Problems can occur after birth. For example, meningitis or other brain infections that occur in young babies can cause brain damage resulting in cerebral palsy.