Wolfram Alpha is mostly for "trivia" type problems. Or giving solutions to equations. I was figuring out some mode decomposition methods such as ESPRIT and Pro

Wolfram Alpha is mostly for "trivia" type problems. Or giving solutions to equations. I was figuring out some mode decomposition methods such as ESPRIT and Prony and how to potentially extend/customize them. Wolfram Alpha doesn't seem to have a clue about such.