def calculateBasicPoints(n, czebyszew):
    points = []
    interval = (xn - x0) / (n - 1)
    for x in range(n):
        if czebyszew:
            currX = 1/2 * (xn + x0) + 1/2 * (xn - x0) * cos((2 * (x + 1) - 1) / 2 / n * pi)
        else:
            currX = x0 + x * interval
        points.append([currX, getOrigValues(currX)])
    return points