Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
2023.0.0 - English


mtlb_a

Matlab addition emulation function

Description

Matlab and Scilab addition behave differently in some particular cases:

  • With character string operands: The + operator is used into Scilab to catenate character strings, while Matlab realizes the sum of the operands ASCII codes.

  • With empty matrix: In Scilab, if one of the operands is an empty matrix the result of the addition is the other operand. In Matlab if one of the operand is an empty matrix the result of the addition should be an error or an empty matrix.

The function mtlb_a(A,B) is used by mfile2sci to replace A+B when it was not possible to know what were the operands while porting Matlab code to Scilab. This function will determine the correct semantic at run time. If you want to have a more efficient code it is possible to replace mtlb_a calls:

  • If A and B are character strings, mtlb_a(A,B) may be replaced by asciimat(A)+asciimat(B)

  • If both A and B are not empty matrices mtlb_a(A,B) may be replaced by A+B, else mtlb_a(A,B) may be replaced by [].

Caution: mtlb_a has not to be used for hand coded functions.

See also

  • mtlb_s — Matlab subtraction emulation function
Report an issue
<< mtlb_0 Compatible fonctions mtlb_all >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Mon Mar 27 11:52:51 GMT 2023