# appcoef

1-D approximation coefficients

## Description

## Examples

## Input Arguments

## Output Arguments

## Algorithms

The input vectors `c`

and `l`

contain all the
information about the signal decomposition.

Let `NMAX = length(l)-2`

; then ```
c = [A(NMAX) D(NMAX) ...
D(1)]
```

where `A`

and the `D`

are vectors.
If `N = NMAX`

, then a simple extraction is done; otherwise,
`appcoef`

computes iteratively the approximation coefficients
using the inverse wavelet transform.

## Extended Capabilities

## Version History

**Introduced before R2006a**