function _out (arr) {
    if (config.matrix === 'Matrix') {
      return matrix ? matrix(arr) : noMatrix()
    }

    return arr
  }
Create an array from a range.
By default, the range end is excluded. This can be customized by providing
an extra parameter `includeEnd`.

Syntax:

    math.range(str [, includeEnd])               // Create a range from a string,
                                                 // where the string contains the
                                                 // start, optional step, and end,
                                                 // separated by a colon.
    math.range(start, end [, includeEnd])        // Create a range with start and
                                                 // end and a step size of 1.
    math.range(start, end, step [, includeEnd])  // Create a range with start, step,
                                                 // and end.

Where:

- `str: string`
  A string 'start:end' or 'start:step:end'
- `start: {number | bigint | BigNumber | Fraction | Unit}`
  Start of the range
- `end: number | bigint | BigNumber | Fraction | Unit`
  End of the range, excluded by default, included when parameter includeEnd=true
- `step: number | bigint | BigNumber | Fraction | Unit`
  Step size. Default value is 1.
- `includeEnd: boolean`
  Option to specify whether to include the end or not. False by default.

Note that the return type of the range is taken from the type of
the start/end. If only one these is a built-in `number` type, it will
be promoted to the type of the other endpoint. However, in the case of
Unit values, both endpoints must have compatible units, and the return
value will have compatible units as well.

Examples:

    math.range(2, 6)        // [2, 3, 4, 5]
    math.range(2, -3, -1)   // [2, 1, 0, -1, -2]
    math.range('2:1:6')     // [2, 3, 4, 5]
    math.range(2, 6, true)  // [2, 3, 4, 5, 6]
    math.range(2, math.fraction(8,3), math.fraction(1,3)) // [fraction(2), fraction(7,3)]
    math.range(math.unit(2, 'm'), math.unit(-3, 'm'), math.unit(-1, 'm')) // [2 m, 1 m, 0 m , -1 m, -2 m]

See also:

    ones, zeros, size, subset

@param {*} args   Parameters describing the range's `start`, `end`, and optional `step`.
@return {Array | Matrix} range