{{alias}}( generator[, options] )
    Sum the elements of the series given by the supplied function.

    Parameters
    ----------
    generator: Function
        Series function.

    options: Object (optional)
        Options.

    options.maxTerms: integer (optional)
        Maximum number of terms to be added. Default: `1000000`.

    options.tolerance: number (optional)
        Further terms are only added as long as the next term is greater than
        the current term times the tolerance. Default: `2.22e-16`.

    options.initialValue: number (optional)
        Initial value of the resulting sum. Default: `0`.

    Returns
    -------
    out: number
        Sum of series terms.

    Examples
    --------
    // Using an ES6 generator function:
    > function* geometricSeriesGenerator( x ) {
    ...     var exponent = 0;
    ...     while ( true ) {
    ...         yield Math.pow( x, exponent );
    ...         exponent += 1;
    ...     }
    ... };
    > var gen = geometricSeriesGenerator( 0.9 );
    > var out = {{alias}}( gen )
    10

    // Using a closure:
    > function geometricSeriesClosure( x ) {
    ...     var exponent = -1;
    ...     return function() {
    ...         exponent += 1;
    ...         return Math.pow( x, exponent );
    ...     };
    ... };
    > gen = geometricSeriesClosure( 0.9 );
    > out = {{alias}}( gen )
    10

    // Setting an initial value for the sum:
    > out = {{alias}}( geometricSeriesGenerator( 0.5 ), { 'initialValue': 1 } )
    3
    // Changing the maximum number of terms to be summed:
    > out = {{alias}}( geometricSeriesGenerator( 0.5 ), { 'maxTerms': 10 } )
    ~1.998 // Infinite sum is 2

    // Adjusting the used tolerance:
    > out = {{alias}}( geometricSeriesGenerator( 0.5 ), { 'tolerance': 1e-3 } )
    ~1.998

    See Also
    --------