deff - on-line definition of function

Calling Sequence

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

Parameters

• e1,e2,..., : input variables.
• s1,s2,..., : output variables.
• text : matrix of character strings
• opt : optional character string
• 'c' : function is "compiled" to be more efficient (default)
• 'n' : function is not "compiled"

Description

On-line definition of function (user defined function): the name of the created function is newfunction. text is a sequence of instructions usually set as a vector of character strings.

This command can be used inside a function and the new function can be an input or output of any other function.

Usually, functions are defined in a file and loaded into Scilab by getf

Some time, in particular when you want to use define strings within deff text is rather difficult to write. A more tractable way may be to define your function in a file as usual, to load it into Scilab by getf (without 'c' option) and use sci2exp to get corresponding deff instructions.

Examples

deff('[x]=myplus(y,z)','x=y+z')
//
deff('[x]=mymacro(y,z)',['a=3*y+1'; 'x=a*z+y'])
 

See Also

getf  comp  exec  function