deff in-line definition of a function in Scilab language

## Syntax

    deff('[s1, s2, ...] = newfunction(e1, e2, ...)',text)

## Arguments

e1, e2, ...

  input variables.

s1, s2, ...

  output variables.

text

  a matrix of character strings.

## Description

`deff` can be used to define functions from sequences of instructions written in text strings. The resulting function object has the same properties of any other function defined in a text file and loaded with `exec`.

Quotes included in instructions given in strings must be doubled to be protected.

## Examples

    deff('x = myplus(y,z)', 'x = y+z')
    myplus(1,%i)

    deff('[y, z] = mymacro(x)', ['y = 3*x+1'; 'z = a*x + x.^2'])
    a = 3;
    [u, v] = mymacro(2)

    --> deff('x = myplus(y,z)', 'x = y+z')
    --> myplus(1,%i)
     ans  =
       1. + i

    --> deff('[y, z] = mymacro(x)', ['y = 3*x+1'; 'z = a*x + x.^2'])
    --> a = 3;
    --> [u, v] = mymacro(2)
     v  =
       10.

     u  =
       7.

## See also

- function
- exec
- getd
- genlib
- jdeff
- jcompile

## History

6.0.0

- The input option `opt="c"|"p"|"n"` is no longer available.
- The defined `newfunction` is now of type 13 (instead of 11).