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)