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 This page may be out of date.
Parallelogram (Jump to Area of a Parallelogram or Perimeter of a Parallelogram) A Parallelogram is a flat shape with opposite sides parallel and equal in length. | and || show equal sides