idwt

result = idwt(m)

Input: m · Output: result

What it is

m is a (2, N) matrix of [approx; detail] rows (each row length N).

One call shape — this function is not overloaded.

Code	Input	Output	Description
`result = idwt(m)`	`m` matrixnot documented yet	`result` vector	Returns a length-`2N` real vector, reconstructing the original signal. Inverse of `dwt`.

From the documentation, and run by the build -- the output and the figure below are what the engine actually produced. Simplest first.

  D = dwt(x)
  approx = D[0, :]
  detail = D[1, :]
  xr = idwt(D)                 # reconstructs x exactly