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.TH plus 1 "April 1993" "Scilab Group" "Scilab Operator"
.so ../sci.an
.SH NAME
plus (+) - addition operator
.SH CALLING SEQUENCE
.nf
X+Y
str1+str2
.fi
.SH PARAMETERS
.TP
X
: scalar or vector or matrix of numbers, polynomials or rationals. It
may also be a \fVsyslin\fR list
.TP
Y
: scalar or vector or matrix of numbers, polynomials or rationals. It
may also be a \fVsyslin\fR list
.TP
str1
: a character string, a vector or a matrix of character strings
.TP
str2
: a character string, a vector or a matrix of character strings
.SH DESCRIPTION
Addition.
.LP
For numeric operands addition as its usual meaning.
If one of the operands is a matrix and the other one a scalar the
scalar is added to each matrix entries. if one of the operands is an
empty matrix the other operand is returned.
.LP
For character strings \fV+\fR means concatenation.
.LP
Addition may also be defined for other data types through
"soft-coded" operations.
.SH EXAMPLE
.nf
[1,2]+1
[]+2
s=poly(0,"s");
s+2
1/s+2
"cat"+"enate"
.fi
.SH SEE ALSO
addf, mtlb_mode
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