Department of Radiology. Interventional. Interventional Radiology is a specialty whereby minimally invasive procedures are performed with the use of image guidance (CT scans, ultrasounds, and x-rays).
T RUNCATION & W ILDCARD O PERATORS revised 1/08gs Truncation Use the truncation symbols to create searches where you want to retrieve all variants of a word stem. The most commonly used truncation symbol is the asterisk (*).For example, a search for educat* will retrieve: educate, educating, education, educational, educator, educators, etc. Wildcards A wildcard symbol is used within a word to provide for all possible spellings or variations inside a word or word stem. RUNCATION & W ILDCARD O PERATORS revised 1/08gs Truncation Use the truncation symbols to create searches where you want to retrieve all variants of a word stem. The most commonly used truncation symbol is the asterisk (*).
An analogue of truncation can be applied to polynomials. In this case, the truncation of a polynomial P to degree n can be defined as the sum of all terms of P of degree n or less. Polynomial truncations arise in the study of Taylor polynomials, for example. See also. Arithmetic precision; Floor function; Quantization (signal processing)