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.TH evstr 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
evstr - evaluation of expressions
.SH CALLING SEQUENCE
.nf
H=evstr(Z)
[H,ierr]=evstr(Z)
.fi
.SH PARAMETERS
.TP 6
Z
: matrix of character strings \fVM\fR or \fVlist(M,Subexp)\fR
.RS
.TP 10
M
: matrix of character strings
.TP
Subexp
: vector of character strings
.RE
.TP
H
: matrix
.TP
ierr
: integer, error indicator
.SH DESCRIPTION
returns the evaluation of the matrix of character strings. Each
element of the \fVM\fR matrix must be a character string defining a
scilab expression.
.LP
If evaluation of M expression leads to an error \fVH=evstr(M)\fR
produces an error which is handled as usual. \fV[H,ierr]=evstr(M)\fR
produces an error message and return the error number in \fVierr\fR.
.LP
If \fVZ\fR is a list, \fVSubexp\fR is a character strings vector
which defines sub_expressions evaluated before evaluation of \fVM\fR.
These sub_expressions must be referred as \fV%(k)\fR in \fVM\fR
(\fVk\fR is the sub-expression index in \fVSubexp\fR).
.LP
evstr('a=1') is not valid (use \fVexecstr\fR ).
.SH EXAMPLES
.nf
a=1; b=2; Z=['a','b'] ; evstr(Z)
a=1; b=2; Z =list(['%(1)','%(1)-%(2)'],['a+1','b+1']);
evstr(Z)
.fi
.SH SEE ALSO
execstr
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