Scilab-Branch-5.3-GIT

- Scilab help
- Elementary Functions
- Bitwise operations
- Complex
- Discrete mathematics
- Elementary matrices
- Floating point
- Integer representation
- Matrix manipulation
- Matrix operations
- Search and sort
- Set operations
- Signal processing
- Symbolic
- Trigonometry
- abs
- amell
- and
- &
- cat
- cell2mat
- cellstr
- char
- delip
- diff
- exp
- inttrap
- isdef
- isempty
- isequal
- isequalbitwise
- isvector
- log
- log10
- log1p
- log2
- logm
- lstsize
- max
- min
- modulo
- ndims
- norm
- or
- |
- pertrans
- sign
- signm
- size
- sqrt
- sqrtm
- squarewave
- toeplitz
- typeof

Please note that the recommended version of Scilab is 6.1.0. This page might be outdated.

See the recommended documentation of this function

# diff

Difference and discrete derivative

### Calling Sequence

y=diff(x) y=diff(x [,n [,dim]])

### Arguments

- x
vector or matrix (real, complex, sparse or polynomial)

- n
integer the order of differentiation

- dim
integer or character string with values "r","c" and "*"

- y
scalar or vector

### Description

`y=diff(x)`

compute the difference function
y=x(2:$)-x(1:$-1)

`diff(x,n,dim)`

is the `n`

th
difference function along dimension `dim`

.

`diff(x,n,"*")`

is equivalent to
diff(x(:),n).

Default value for `n`

is 1. Default value for
`dim`

is `"*"`

.

`dim='r'`

is equivalent to `dim=1`

and `dim='c'`

is equivalent to
`dim=2`

.

## Comments

Add a comment:Please login to comment this page.