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.TH deff 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
deff - on-line definition of function
.SH CALLING SEQUENCE
.nf
deff('[s1,s2,...]=newfunction(e1,e2,....)',text [,opt])
.fi
.SH PARAMETERS
.TP 15
e1,e2,...,
: input variables.
.TP 15
s1,s2,...,
: output variables.
.TP 15
text
: matrix of character strings
.TP 15
opt
: optional character string
.RS
.TP
'c'
: function is "compiled" to be more efficient (default)
.TP
'n'
: function is not "compiled"
.RE
.SH DESCRIPTION
On-line definition of function (user defined function): the name of the
created function is \fVnewfunction\fR.
\fVtext\fR is a sequence of instructions usually set as a vector of
character strings.
.LP
This command can be used inside a function and the new function
can be an input or output of any other function.
.LP
Usually, functions are defined in a file and loaded into Scilab by
\fVgetf\fR
.LP
Some time, in particular when you want to use define strings within
\fVdeff\fR \fVtext\fR 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 \fVgetf\fR (without \fV'c'\fR option) and use sci2exp to
get corresponding \fVdeff\fR instructions.
.SH EXAMPLES
.nf
deff('[x]=myplus(y,z)','x=y+z')
//
deff('[x]=mymacro(y,z)',['a=3*y+1'; 'x=a*z+y'])
.fi
.SH SEE ALSO
getf, comp, exec, function
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