is radiology and x ray the same thing
Radiology A variety of imaging techniques such as X-ray radiography, ultrasound, computed tomography (CT), nuclear medicine including positron emission tomography (PET), and magnetic resonance imaging (MRI) are used to diagnose and/or treat diseases. Interventional radiology is the performance of (usually minimally invasive) medical procedures with the guidance of imaging technologies.
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
Marcus Álvarez
Religio The Latin term