Inverse Discrete Cosine Transform calculator

Calculates Inverse Discrete Cosine Transform (IDCT) for a real sequence a. It is the second variant (IDCT-II), which is equal to DCT-III, as defined in Wikipedia.
sequence a:
 Upload Excel or CSV file for batch operation: (read about supported files and formats)
  API URL: http://calculator.vhex.net/c/idct (see documentation. JSONP is now available)