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 This page may be out of date.
What Is a Cartogram? A cartogram is a map, but a special type of map which attempts to convey a general sense of geography in addition to one or more other important statistical elements. Most maps attempt to portray an accurate image of the Earthâs surface, superimposed with other information such as political borders or place names.