Known for hot temperatures, Southern California and the rest of the Southwest United States are undergoing a cold snap that has set records in many areas throughout the region.
Periodogram is the spectrum of a set of time signal usually obtained by fast Fourier transform (FFT). It usually shows frequency as x-axis, and magnit... This page may be out of date.
A mammogram is a type of x-ray for imaging the breast area. The image is used by radiologists and other qualified specialists to conduct tissue examinations and detect any growths or deformities. To produce the image, the breast issue is exposed to a small amount of harmless iodizing radiation.