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CHAR Convert to character array or string

Section: Type Conversion Functions

# Usage

The `char` function can be used to convert an array into a string. It has several forms. The first form is

       y = char(x)

where `x` is a numeric array containing character codes. FreeMat does not currently support Unicode, so the character codes must be in the range of `[0,255]`. The output is a string of the same size as `x`. A second form is

       y = char(c)

where `c` is a cell array of strings, creates a matrix string where each row contains a string from the corresponding cell array. The third form is

       y = char(s1, s2, s3, ...)

where `si` are a character arrays. The result is a matrix string where each row contains a string from the corresponding argument.

# Example

Here is an example of the first technique being used to generate a string containing some ASCII characters

    --> char([32:64;65:97])

    ans =
     !"#$%&'()*+,-./0123456789:;<=>?@
    ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`a

In the next example, we form a character array from a set of strings in a cell array. Note that the character array is padded with spaces to make the rows all have the same length.

    --> char({'hello','to','the','world'})

    ans =
    hello
    to
    the
    world

In the last example, we pass the individual strings as explicit arguments to `char`

    --> char('hello','to','the','world')

    ans =
    hello
    to
    the
    world