A nuclear stress test is a noninvasive means of detecting the presence and/or signiï¬ cance of coronary. artery disease. Coronary artery disease is a condition in which there is narrowing or blockage of the blood. vessels supplying the heart muscle. This can cause chest pain which is known as angina pectoris.
coefficient. n. 1. (Mathematics) maths. a. a numerical or constant factor in an algebraic term: the coefficient of the term 3xyz is 3. b. the product of all the factors of a term excluding one or more specified variables: the coefficient of x in 3axyz is 3ayz.
Like Algebra the Coefficient is the number in front of the variable terms. #4x^2y# The coefficient is #4# In Chemistry the coefficient is the number in front of the formula. The coefficient tells us how many molecules of a given formula are present. #2H_2O# means we have #2# molecules of water. In the balanced chemical equation for Ammonia