function evalpoly( x ) {
	if ( x === 0.0 ) {
		return 0.16666586697101593;
	}
	return float64ToFloat32(0.16666586697101593 + float64ToFloat32(x * float64ToFloat32(-0.04274342209100723 + float64ToFloat32(x * -0.008656363002955914)))); // eslint-disable-line max-len
}
Evaluates a polynomial.

## Notes

-   The implementation uses [Horner's rule][horners-method] for efficient computation.

[horners-method]: https://en.wikipedia.org/wiki/Horner%27s_method

@private
@param {number} x - value at which to evaluate the polynomial
@returns {number} evaluated polynomial