# mtlb_upper

Matlab upper emulation function

## Description

Matlab `upper(A)` and Scilab `convstr(A,"u")` behave differently in some particular cases:

- If `A` is not a chacarter string matrix: Matlab `upper` can be used with a not-character-string `A` but not Scilab `convstr`.

The function `mtlb_upper(A)` is used by `mfile2sci` to replace `upper(A)` when it was not possible to know what were the inputs 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_upper` calls:

- If `A` is a character string matrix `mtlb_upper(A)` may be replaced by `convstr(A,"u")`

- If `A` is not a character string matrix `mtlb_upper(A)` may be replaced by `A`

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

## See Also

- convstr