plus (+)
Numerical addition. Text concatenation (gluing)
Syntax
X + Y str1 + str2
Arguments
- X,Y
scalars, vectors, matrices or hypermatrices of booleans, numbers, polynomials, or rationals. They may also be
syslin
lists.- str1, str2
two texts, vectors, matrices, or hypermatrices of texts.
Description
For numeric operands, the addition has its usual meaning.
Adding booleans together or to numbers of integer, decimal or complex type
performs the implicit conversions %F => 0
and %T => 1
before processing. The result has the type of the input numbers, or is decimal for
booleans added together.
For two texts, +
concatenates (glues) them together.
If an operand is an array and the other one is a scalar, the scalar is applied (added or glued) to each component of the array.
If an operand is the empty matrix []
, the result is []
.
The addition operator may be extended to other data types through overloading.
Examples
[1, 2] + 1 [] + 2 %s + 2 1/%s + %s "con" + ["catenate" "crete" "sole"]
--> [1, 2] + 1 ans = 2. 3. --> [] + 2 ans = [] --> %s + 2 ans = 2 +s --> 1/%s + %s ans = 2 1 + s ------ s --> "con" + ["catenate" "crete" "sole"] ans = !concatenate concrete console !
With booleans:
[%f %f %t %t] + [%f %t %f %t] %f + [-1 0 2 %i] %t + [-1 0 2 %i]
--> [%f %f %t %t] + [%f %t %f %t] ans = 0. 1. 1. 2. --> %f + [-1 0 2 %i] ans = -1. 0. 2. i --> %t + [-1 0 2 %i] ans = 0. 1. 3. 1. + i
See also
- minus — (-) subtraction operator. Sign change
- operators — scilab operator names
- overloading — display, functions and operators overloading capabilities
- oldEmptyBehaviour — Controls the operation+ and operation- behaviour for Scilab
- mtlb_a — Matlab addition emulation function
History
Version | Description |
6.0.0 | A + [] now returns [] instead of
A |
Report an issue | ||
<< percent | Scilab keywords | quote >> |