Problem 1460. Cosine frequency doubler

Given an input vector containing a cosine wave of unknown frequency, produce an output vector of the same length containing a cosine wave of twice the input frequency. The output should have the same mean and amplitude as the input.

Solution Stats

21.85% Correct | 78.15% Incorrect
Last solution submitted on Feb 24, 2019

Solution Comments

Problem Recent Solvers15

Suggested Problems