Float Smoothing

// Exponential smoothing keeps fractional state without implicit conversions.
pure funcra blend(current: float, sample: float, weight: float = 0.25) -> float
    needs weight >= 0.0 and weight <= 1.0;
{
    return current * (1.0 - weight) + sample * weight;
}

var estimate = 20.0;
repeat 4 as iteration {
    estimate = blend(estimate, sample: 28.0);
}
print("smoothed", estimate);
print("balanced", blend(10.0, 14.0, 0.5));